{"id":"CVE-2025-11683","aliases":["AZL-109466","AZL-109514","BELL-CVE-2025-11683","DEBIAN-CVE-2025-11683","EUVD-2025-34701","GHSA-gr2g-vmxj-5cv8","UBUNTU-CVE-2025-11683","USN-7844-1","openSUSE-SU-2026:10746-1","openSUSE-SU-2026:20771-1","openSUSE-SU-2026:21452-1","openSUSE-SU-2026:21497-1"],"status":"published","title":"YAML::Syck versions before 1.36 for Perl has missing Null-Terminators which causes Out-of-Bounds Read and potential Information Disclosure","description":"YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure\n\nMissing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read\n\nThe issue is seen with complex YAML files with a hash of all keys and empty values.  There is no indication that the issue leads to accessing memory outside that allocated to the module.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00307,"percentile":0.23838,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-119"],"published":"2025-10-16T00:14:41Z","modified":"2026-11-05T05:36:30Z","fixes":[{"ecosystem":"Debian:12","package":"libyaml-syck-perl","fixed_in":["1.34-2+deb12u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libyaml-syck-perl","fixed_in":["1.34-2+deb13u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libyaml-syck-perl","fixed_in":["1.34-4"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:16.04:LTS","package":"libyaml-syck-perl","fixed_in":["1.29-1ubuntu0.16.04.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libyaml-syck-perl","fixed_in":["1.29-1ubuntu0.18.04.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:20.04:LTS","package":"libyaml-syck-perl","fixed_in":["1.31-1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:22.04:LTS","package":"libyaml-syck-perl","fixed_in":["1.34-1ubuntu0.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:Pro:24.04:LTS","package":"libyaml-syck-perl","fixed_in":["1.34-2ubuntu0.24.04.1~esm1"],"sources":["osv"]},{"ecosystem":"Ubuntu:25.10","package":"libyaml-syck-perl","fixed_in":["1.34-3ubuntu0.1"],"sources":["osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"perl-YAML-Syck","fixed_in":["1.450.0-1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"perl-YAML-Syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.34-1"}]}]},{"source":"osv","ecosystem":"Azure Linux:3","package":"perl-YAML","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.30-2"}]}]},{"source":"osv","ecosystem":"Alpaquita:23","package":"perl-yaml-syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.34-r2"}]}]},{"source":"osv","ecosystem":"Alpaquita:25","package":"perl-yaml-syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.34-r5"}]}]},{"source":"osv","ecosystem":"Alpaquita:stream","package":"perl-yaml-syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.34-r1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34-2+deb12u1"}]}],"versions":["1.34-2"]},{"source":"osv","ecosystem":"Debian:13","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34-2+deb13u1"}]}],"versions":["1.34-2"]},{"source":"osv","ecosystem":"Debian:14","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34-4"}]}],"versions":["1.34-2","1.34-3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29-1ubuntu0.16.04.1~esm1"}]}],"versions":["1.27-2build2","1.29-1","1.29-1build1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29-1ubuntu0.18.04.1~esm1"}]}],"versions":["1.29-1build3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.31-1ubuntu0.1~esm1"}]}],"versions":["1.31-1","1.31-1build1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34-1ubuntu0.1~esm1"}]}],"versions":["1.34-1build1","1.34-1build2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34-2ubuntu0.24.04.1~esm1"}]}],"versions":["1.34-2","1.34-2build1","1.34-2build2","1.34-2build3"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34-3ubuntu0.1"}]}],"versions":["1.34-2build4","1.34-3"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.34-3","1.34-4","1.36-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29-1ubuntu0.16.04.1~esm1"}]}],"versions":["1.27-2build2","1.29-1","1.29-1build1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.29-1ubuntu0.18.04.1~esm1"}]}],"versions":["1.29-1build3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.31-1ubuntu0.1~esm1"}]}],"versions":["1.31-1","1.31-1build1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34-1ubuntu0.1~esm1"}]}],"versions":["1.34-1build1","1.34-1build2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34-2ubuntu0.24.04.1~esm1"}]}],"versions":["1.34-2","1.34-2build1","1.34-2build2","1.34-2build3"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34-3ubuntu0.1"}]}],"versions":["1.34-2build4","1.34-3"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"perl-YAML-Syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.450.0-1.1"}]}]},{"source":"osv","ecosystem":"openSUSE:Leap 16.0","package":"perl-YAML-Syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.470.0-bp160.1.1"}]}],"bundled":5}],"products":[{"vendor":"toddr","product":"yaml::syck"},{"vendor":"toddr","product":"yaml\\"}],"references":[{"url":"https://github.com/cpan-authors/YAML-Syck/pull/65","tags":["patch","Issue Tracking","fix","report"]},{"url":"https://metacpan.org/dist/YAML-Syck/changes","tags":["release-notes","Product","Release Notes","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-11683","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-gr2g-vmxj-5cv8"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2025-11683","tags":["advisory"]},{"url":"https://cpan.org/modules","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/11xxx/CVE-2025-11683.json","tags":["advisory"]},{"url":"https://github.com/cpan-authors/YAML-Syck","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-11683","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-11683","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-11683","tags":["report"]},{"url":"https://github.com/cpan-authors/YAML-Syck/commit/dcf4c8477b82ef439f43fd20dc099082d096df02","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-7844-1","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2025-11683","tags":["web"]},{"url":"https://bugzilla.suse.com/1252111","tags":["report"]},{"url":"https://bugzilla.suse.com/1259757","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2026-4177","tags":["web"]},{"url":"https://bugzilla.suse.com/1271631","tags":["report"]},{"url":"https://bugzilla.suse.com/1271632","tags":["report"]},{"url":"https://bugzilla.suse.com/1271633","tags":["report"]},{"url":"https://bugzilla.suse.com/1271634","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2026-13713","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-57075","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-57076","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2026-57077","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2025-11683","title":"YAML::Syck versions before 1.36 for Perl has missing Null-Terminators which causes Out-of-Bounds Read and potential Information Disclosure","description":"YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure\n\nMissing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read\n\nThe issue is seen with complex YAML files with a hash of all keys and empty values.  There is no indication that the issue leads to accessing memory outside that allocated to the module.","status":"published","published":"2025-10-16T00:14:41.769Z","modified":"2025-10-16T13:42:17.584Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:32:50.872559Z"}],"euvd":[{"id":"EUVD-2025-34701","description":"YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure\n\nMissing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read\n\nThe issue is seen with complex YAML files with a hash of all keys and empty values.  There is no indication that the issue leads to accessing memory outside that allocated to the module.","status":"published","published":"2025-10-16T00:14:41Z","modified":"2025-10-16T13:42:17Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:31:31.065489Z"}],"ghsa":[{"id":"GHSA-gr2g-vmxj-5cv8","title":"YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds...","description":"YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure\n\nMissing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read\n\nThe issue is seen with complex YAML files with a hash of all keys and empty values.  There is no indication that the issue leads to accessing memory outside that allocated to the module.","status":"published","published":"2025-10-16T03:30:23Z","modified":"2025-10-16T15:30:42Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:04:00.621717Z"}],"nvd":[{"id":"CVE-2025-11683","description":"YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure\n\nMissing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read\n\nThe issue is seen with complex YAML files with a hash of all keys and empty values.  There is no indication that the issue leads to accessing memory outside that allocated to the module.","status":"published","published":"2025-10-16T01:15:32.89Z","modified":"2026-10-08T11:10:00.25Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:11:38.17237Z"}],"osv":[{"id":"BELL-CVE-2025-11683","status":"published","published":"2025-10-17T06:04:45.741029Z","modified":"2026-01-26T09:41:21.965775Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:21.227396Z"},{"id":"CVE-2025-11683","title":"YAML::Syck versions before 1.36 for Perl has missing Null-Terminators which causes Out-of-Bounds Read and potential Information Disclosure","description":"YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure\n\nMissing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read\n\nThe issue is seen with complex YAML files with a hash of all keys and empty values.  There is no indication that the issue leads to accessing memory outside that allocated to the module.","status":"published","published":"2025-10-16T00:14:41.769Z","modified":"2026-10-28T02:30:53.990234184Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:44:46.024537Z"},{"id":"DEBIAN-CVE-2025-11683","description":"YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure  Missing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read  The issue is seen with complex YAML files with a hash of all keys and empty values.  There is no indication that the issue leads to accessing memory outside that allocated to the module.","status":"published","published":"2025-10-16T01:15:32.89Z","modified":"2026-10-09T09:47:24.458770513Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:45.102284Z"},{"id":"UBUNTU-CVE-2025-11683","description":"YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure Missing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read The issue is seen with complex YAML files with a hash of all keys and empty values.  There is no indication that the issue leads to accessing memory outside that allocated to the module.","status":"published","published":"2025-10-16T01:15:00Z","modified":"2026-05-20T16:20:20.11104401Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T16:55:20.144818Z"},{"id":"AZL-109466","title":"CVE-2025-11683 affecting package perl-YAML-Syck 1.34-1","description":"YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure\n\nMissing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read\n\nThe issue is seen with complex YAML files with a hash of all keys and empty values.  There is no indication that the issue leads to accessing memory outside that allocated to the module.","status":"published","published":"2025-10-16T01:15:32Z","modified":"2026-11-05T05:36:30Z","updated_at":"2026-11-05T16:41:18.42484Z"},{"id":"AZL-109514","title":"CVE-2025-11683 affecting package perl-YAML 1.30-2","description":"YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure\n\nMissing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read\n\nThe issue is seen with complex YAML files with a hash of all keys and empty values.  There is no indication that the issue leads to accessing memory outside that allocated to the module.","status":"published","published":"2025-10-16T01:15:32Z","modified":"2026-10-27T05:36:16Z","updated_at":"2026-11-02T15:28:02.044071Z"},{"id":"openSUSE-SU-2026:10746-1","title":"perl-YAML-Syck-1.450.0-1.1 on GA media","description":"These are all security issues fixed in the perl-YAML-Syck-1.450.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-05-11T00:00:00Z","modified":"2026-05-12T08:46:02.72395Z","updated_at":"2026-11-02T16:58:38.415593Z"},{"id":"openSUSE-SU-2026:20771-1","title":"Security update for perl-YAML-Syck","description":"This update for perl-YAML-Syck fixes the following issues:\n\nChanges in perl-YAML-Syck:\n\n- updated to 1.450.0 (1.45)\n    [Bug Fixes]\n    - Fix: use syck_base64_free() to fix Windows \"Free to wrong pool\" crash\n      in base64 encode/decode buffers; also plugs a memory leak (PR #189)\n    - Fix: clear type tag on blessed scalar alias early-return so the stale\n      tag no longer leaks onto the next emitted item (GH #193, PR #194)\n    - Fix: negative float#base60 values produce wrong results; strip sign\n      before accumulating and avoid negative zero for portable\n      stringification (PR #191)\n    - Fix: prevent memory leaks when Load/LoadJSON croak on parse errors\n      (PR #192)\n    [Maintenance]\n    - Test: add coverage for SortKeys and JSON MaxDepth (PR #188)\n    - Test: add error handling coverage for LoadFile/DumpFile (PR #190)\n    - Update README\n\n- updated to 1.440.0 (1.44)\n    [Bug Fixes]\n    - Fix: positive hex and octal values parsed as 0 with ImplicitTyping\n      (PR #187)\n    - Fix: resolve uintptr_t redefinition error on Win64 MinGW\n      (PR #186)\n  1.43 Apr 01 2026\n    [Bug Fixes]\n    - Fix: prevent resource leaks on croak/early-return paths in Dump\n      (PR #161)\n    - Fix: prevent output SV leaks on croak in Dump/DumpFile callers\n      (PR #163)\n    - Fix: Load() in list context returns empty list for empty/undef input;\n      also applies to LoadBytes and LoadUTF8 (GH #164, PR #165)\n    - Fix: DumpCode serializes prototype string instead of code body\n      (PR #168)\n    - Fix: memory leak in !perl/scalar Load — newRV_inc should be\n      newRV_noinc (PR #170)\n    - Fix: add pTHX_ to SAVEDESTRUCTOR_X callback for threaded Perl\n      (GH #175, PR #176)\n    - Fix: add TODO guard for eval_pv leak on Perl \u003c 5.14\n      (GH #179, PR #180)\n    - Fix: negative hex and octal values parsed as 0 with ImplicitTyping\n      (PR #183)\n    - Fix: negative int#base60 values produce unsigned wraparound (PR #185)\n    [Improvements]\n    - Modernize META_MERGE for CPANTS compliance (PR #162)\n    - Fix hash table size handling and remove compile warnings in syck_st\n      (PR #174)\n    [Maintenance]\n    - Restore TODO guard for Dump code leak test on Perl \u003c 5.26 (PR #167)\n    - Resolve 2010 TODO in perl_json_postprocess with test coverage\n      (PR #166)\n    - CI: upgrade actions to resolve Node.js 20 deprecation warnings\n      (PR #177)\n  1.42 Mar 27 2026\n    [Bug Fixes]\n    - Fix: replace strtok() with strpbrk() and fix sign-compare warnings in\n      perl_syck.h (PR #145)\n    - Fix: terminate plain scalars at document boundaries --- and ... (PR #150)\n    - Fix: skip %TAG and %YAML directives in document header (PR #151)\n    - Fix: plug SV leak when eval_pv croaks on bad perl/code blocks (PR #153)\n    - Fix: allow non-specific tag '!' before block scalars (GH #27, PR #102)\n    - Fix: remove spurious %type \u003cnodeId\u003e for indent_open in gram.y\n      (GH #157, PR #158)\n    - Fix: use modern bison %define api.prefix directive (GH #159, PR #160)\n    [Improvements]\n    - Implement YAML merge key (\u003c\u003c) support (PR #149)\n    [Maintenance]\n    - Remove dead Perl 5.6/5.8 version guards from test files (PR #146)\n    - Add YAML 1.0 spec compliance audit and coverage tests (PR #148)\n    - Add comprehensive round-trip tests for YAML 1.0 spec features (PR #152)\n    - Remove unneeded TODO in t/json-basic.t (PR #154)\n    - Add regex Dump/Load/round-trip tests to perl tag scheme (PR #155)\n    - Do not require a .y file to build YAML::Syck; add brew support for bison\n    - Don't ship docs/ directory in tarball\n  1.41 Mar 22 2026\n    [Bug Fixes]\n    - Fix float parsing on -Dusequadmath perls: use Perl's Atof() instead of\n      strtod() so that floats like -3.14 are not corrupted by double-precision\n      rounding artifacts (GH #140, PR #141)\n  1.39 Mar 21 2026\n    [Bug Fixes]\n    - Fix t/yaml-implicit-typing.t failure with -Duselongdouble perls (GH #138, PR #139)\n  1.38 Mar 20 2026\n    [Bug Fixes]\n    - Fix: escape solidus (/) as \\/ in JSON::Syck::Dump for XSS safety (GH #125, PR #130)\n    - Fix: anchor tracking for blessed scalar refs in Dump (GH #126, PR #131)\n    - Fix: prevent buffer underflow in base60 (sexagesimal) parsing (PR #133)\n    - Fix: guard against NULL type from strtok in tag parsing (PR #135)\n    - Fix: correct copy-paste bug in syck_seq_assign() ASSERT macros (PR #137)\n    [Improvements]\n    - Resolve TODO tests for empty/invalid YAML to match actual behavior (GH #127, PR #129)\n    [Maintenance]\n    - Remove dead Perl 5.6 TODOs and convert 5.8 TODO to SKIP (PR #129)\n    - Add comprehensive implicit type resolution test suite (PR #137)\n    - Update MANIFEST to include all unit tests\n    - Clean up test names to remove unnecessary numbering\n  1.37 Mar 18 2026\n    [Features]\n    - Add LoadBytes, LoadUTF8, DumpBytes, DumpUTF8 functions (GH #51)\n    [Fixes]\n    - Fix heap buffer overflow in the YAML emitter - CVE-2026-4177 (GH #67)\n      bsc#1259757\n    - Fix DumpFile with tied filehandles (IO::String, IO::Scalar) (GH #22)\n    - Fix _is_glob to recognize IO::Handle subclasses (GH #23)\n    - Fix memory leak when dumping filehandles (RT#41199, GH #42)\n    - Fix dumping of tied hashes (GH #31)\n    - Fix dumping strings starting with '...' as unquoted plain scalars (GH #34)\n    - Fix dumping strings with tabs and carriage returns as plain scalars (GH #59)\n    - Fix double-dash YAML parsing (RT#34073, GH #35)\n    - Fix extra newline after empty arrays/hashes in YAML output (GH #36)\n    - Remove trailing whitespace from YAML output lines (GH #37, #38, #39)\n    - Fix quoting of \\r and \\t in YAML output instead of emitting raw bytes (GH #40)\n    - Fix growing !!perl/regexp objects in roundtrips (GH #43)\n    - Fix quoted '=' being transformed into 'str' (GH #45)\n    - Fix backslash-space escape in double-quoted YAML strings (GH #61)\n    - Fix flow sequence comma separator not recognized without trailing space (GH #60)\n    - Fix wide character warning in DumpFile (GH #28)\n    - Fix inline arrays without space after comma (GH #25)\n    - Fix: quote strings matching YAML implicit types to prevent roundtrip failures (GH #26)\n    - Fix JSON::Syck::Dump to use JSON-valid \\uXXXX escapes in output (GH #21)\n    - Fix JSON::Syck::Load decoding of \\/ and \\uXXXX escape sequences (GH #30)\n    - Fix: apply JSON postprocessing to JSON::Syck::DumpFile output (GH #104)\n    - Fix: add tied-filehandle fallback to JSON::Syck::DumpFile (GH #98)\n    - Fix: handle JSON escape sequences in SingleQuote mode Load (GH #99)\n    - Fix: restore Perl 5.8 compatibility in test suite (GH #121)\n    - Fix: correct copy-paste error in Makefile.PL clean target (GH #101)\n    - Fix: correct $SortKeys POD default from false to true (GH #100)\n    - Fix: correct POD documentation errors (GH #103)\n    [Maintenance]\n    - Add C23-compatible function prototypes for GCC 15 compatibility (GH #112)\n    - Silence macOS compiler warnings (GH #92)\n    - Guard stdint.h include for portability (HP-UX 11.11) (GH #33)\n    - Guard stdint.h include in syck_st.h for portability (GH #24)\n    - Update ppport.h to 3.68\n    - Add regression tests for magical variable dumping (GH #32)\n    - CI: modernize GitHub Actions workflow (GH #123, #124)\n    - CI: add disttest job to validate MANIFEST completeness\n\n- updated to 1.360.0 (1.36)\n  1.36 Oct 10 2025\n  - Address memory corruption leading to 'str' value being set on empty keys\n    Thanks @timlegge\n    CVE-2025-11683 bsc#1252111\n  1.35 Oct 9 2025\n  - Address parsing error related to string detection on read for empty strings.\n","status":"published","published":"2026-05-19T14:01:13Z","modified":"2026-05-22T18:23:49.768746854Z","updated_at":"2026-11-02T16:58:41.463445Z"},{"id":"openSUSE-SU-2026:21452-1","title":"Security update for perl-YAML-Syck","description":"This update for perl-YAML-Syck fixes the following issues:\n\nChanges in perl-YAML-Syck:\n\n- updated to 1.470.0 (1.47)\n    [Security]\n    - Fix four libsyck memory-safety CVEs reachable from the default\n      YAML::Syck::Load() path on untrusted input with no special flags\n      (reported by Paul Johnson via CPANSec, PR #213):\n      - CVE-2026-57075 (CWE-125): out-of-bounds read in the base64 decoder\n        caused by signed-char indexing of the decode table on !!binary input\n        bsc#1271632\n      - CVE-2026-57076 (CWE-416): use-after-free of an anchor key string\n        shared between the node and the anchors table\n        bsc#1271633\n      - CVE-2026-57077 (CWE-125): one-byte out-of-bounds read in the lexer\n        newline scan during block-scalar parsing (incomplete-fix follow-on\n        to CVE-2025-11683)\n        bsc#1271634\n      - CVE-2026-13713 (CWE-416/CWE-415): use-after-free / double-free of an\n        anchor node on anchor redefinition, a remote-crash DoS from a\n        7-byte input\n        bsc#1271631\n    - Harden syck_base64dec() to bounds-check each read so it cannot run past\n      a non-NUL-terminated input buffer (defense-in-depth for callers passing\n      raw buffers; PR #213)\n    [Bug Fixes]\n    - Fix: enforce $MaxDepth on Load to prevent C-stack exhaustion from\n      deeply nested YAML/JSON input; YAML::Syck and JSON::Syck Load now\n      default to 512, matching Dump (PR #204)\n    - Fix: emit YAML canonical forms (.nan, .inf, -.inf) for NaN/Inf values\n      in Dump so they roundtrip with ImplicitTyping instead of reloading as\n      plain strings (PR #201)\n    [Maintenance]\n    - CI: add an AddressSanitizer job that builds the XS with\n      -fsanitize=address and runs the suite plus the CVE trigger inputs to\n      catch libsyck memory-safety defects; de-pin the libasan version so it\n      tracks the runner's GCC (PR #213)\n\n- updated to 1.460.0 (1.46)\n    [Bug Fixes]\n    - Fix: preserve string nature of numeric-looking values in Dump; pure\n      strings (POK only, no IOK/NOK) are now quoted to maintain roundtrip\n      fidelity (GH #199, PR #200)\n    - Fix: accept trailing commas in flow sequences and mappings\n      ([a, b,] and {a: 1,}), valid per YAML 1.0/1.1/1.2 spec\n      (GH #195, PR #196)\n\n    [Maintenance]\n    - CI: upgrade install-with-cpm to v2 for compatibility with Perl\n      versions prior to 5.24 in perldocker containers (GH #197, PR #198)\n    - Clean up MANIFEST.SKIP: add #!include_default, remove redundant\n      entries, exclude .claude/ from distribution\n","status":"withdrawn","published":"2026-07-27T08:03:38Z","modified":"2026-07-31T14:01:33.655788484Z","updated_at":"2026-11-02T16:58:41.885092Z"},{"id":"openSUSE-SU-2026:21497-1","title":"Security update for perl-YAML-Syck","description":"This update for perl-YAML-Syck fixes the following issues:\n\nChanges in perl-YAML-Syck:\n\n- updated to 1.470.0 (1.47)\n    [Security]\n    - Fix four libsyck memory-safety CVEs reachable from the default\n      YAML::Syck::Load() path on untrusted input with no special flags\n      (reported by Paul Johnson via CPANSec, PR #213):\n      - CVE-2026-57075 (CWE-125): out-of-bounds read in the base64 decoder\n        caused by signed-char indexing of the decode table on !!binary input\n        bsc#1271632\n      - CVE-2026-57076 (CWE-416): use-after-free of an anchor key string\n        shared between the node and the anchors table\n        bsc#1271633\n      - CVE-2026-57077 (CWE-125): one-byte out-of-bounds read in the lexer\n        newline scan during block-scalar parsing (incomplete-fix follow-on\n        to CVE-2025-11683)\n        bsc#1271634\n      - CVE-2026-13713 (CWE-416/CWE-415): use-after-free / double-free of an\n        anchor node on anchor redefinition, a remote-crash DoS from a\n        7-byte input\n        bsc#1271631\n    - Harden syck_base64dec() to bounds-check each read so it cannot run past\n      a non-NUL-terminated input buffer (defense-in-depth for callers passing\n      raw buffers; PR #213)\n    [Bug Fixes]\n    - Fix: enforce $MaxDepth on Load to prevent C-stack exhaustion from\n      deeply nested YAML/JSON input; YAML::Syck and JSON::Syck Load now\n      default to 512, matching Dump (PR #204)\n    - Fix: emit YAML canonical forms (.nan, .inf, -.inf) for NaN/Inf values\n      in Dump so they roundtrip with ImplicitTyping instead of reloading as\n      plain strings (PR #201)\n    [Maintenance]\n    - CI: add an AddressSanitizer job that builds the XS with\n      -fsanitize=address and runs the suite plus the CVE trigger inputs to\n      catch libsyck memory-safety defects; de-pin the libasan version so it\n      tracks the runner's GCC (PR #213)\n\n- updated to 1.460.0 (1.46)\n    [Bug Fixes]\n    - Fix: preserve string nature of numeric-looking values in Dump; pure\n      strings (POK only, no IOK/NOK) are now quoted to maintain roundtrip\n      fidelity (GH #199, PR #200)\n    - Fix: accept trailing commas in flow sequences and mappings\n      ([a, b,] and {a: 1,}), valid per YAML 1.0/1.1/1.2 spec\n      (GH #195, PR #196)\n\n    [Maintenance]\n    - CI: upgrade install-with-cpm to v2 for compatibility with Perl\n      versions prior to 5.24 in perldocker containers (GH #197, PR #198)\n    - Clean up MANIFEST.SKIP: add #!include_default, remove redundant\n      entries, exclude .claude/ from distribution\n","status":"published","published":"2026-07-29T09:24:06Z","modified":"2026-07-31T18:24:10.598985603Z","updated_at":"2026-11-02T16:58:41.885092Z"},{"id":"USN-7844-1","title":"libyaml-syck-perl vulnerability","description":"It was discovered that YAML::Syck did not properly handle parsing  YAML\nfiles. An attacker could possibly use this issue to expose sensitive\ninformation.","status":"published","published":"2025-10-28T19:20:39Z","modified":"2026-06-25T13:32:31.125284136Z","updated_at":"2026-11-02T16:58:21.91885Z"}]}}