{"id":"CVE-2026-57076","aliases":["ALPINE-CVE-2026-57076","AZL-109502","AZL-92910","BELL-CVE-2026-57076","DEBIAN-CVE-2026-57076","EUVD-2026-45055","GHSA-q6x2-vfpr-9j7p","MGASA-2026-0367","UBUNTU-CVE-2026-57076","openSUSE-SU-2026:11299-1","openSUSE-SU-2026:21452-1","openSUSE-SU-2026:21497-1"],"status":"published","title":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor","description":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor.\n\nIn the bundled libsyck an anchor name allocated by syck_strndup is stored both as node-\u003eanchor, freed when the node is freed, and as the key in the parser's anchors table. Freeing the node frees the shared key, and a later anchor redefinition makes st_delete compare against the freed key, so st_strcmp reads freed heap memory. Anchors are a standard YAML feature and need no special flags, so this is reached on the default Load path.\n\nAny caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00168,"percentile":0.06235,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-416"],"published":"2026-07-16T21:40:59Z","modified":"2026-11-05T05:36:30Z","fixes":[{"ecosystem":"Alpine:v3.24","package":"perl-yaml-syck","fixed_in":["1.47-r0"],"sources":["osv"]},{"ecosystem":"Alpaquita:23","package":"perl-yaml-syck","fixed_in":["1.34-r5"],"sources":["osv"]},{"ecosystem":"Alpaquita:25","package":"perl-yaml-syck","fixed_in":["1.34-r8"],"sources":["osv"]},{"ecosystem":"Alpaquita:stream","package":"perl-yaml-syck","fixed_in":["1.47-r0"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"libyaml-syck-perl","fixed_in":["1.34-2+deb12u3"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"libyaml-syck-perl","fixed_in":["1.34-2+deb13u3"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"libyaml-syck-perl","fixed_in":["1.47-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.24","package":"perl-yaml-syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.47-r0"}]}]},{"source":"osv","ecosystem":"Azure Linux:3","package":"perl-YAML","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.30-2"}]}]},{"source":"osv","ecosystem":"Azure Linux:3","package":"perl-YAML-Syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.34-1"}]}]},{"source":"osv","ecosystem":"Alpaquita:23","package":"perl-yaml-syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.34-r2"},{"fixed":"1.34-r5"}]}]},{"source":"osv","ecosystem":"Alpaquita:25","package":"perl-yaml-syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.34-r5"},{"fixed":"1.34-r8"}]}]},{"source":"osv","ecosystem":"Alpaquita:stream","package":"perl-yaml-syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.34-r1"},{"fixed":"1.47-r0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34-2+deb12u3"}]}],"versions":["1.34-2","1.34-2+deb12u1","1.34-2+deb12u2"]},{"source":"osv","ecosystem":"Debian:13","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.34-2+deb13u3"}]}],"versions":["1.34-2","1.34-2+deb13u1","1.34-2+deb13u2"]},{"source":"osv","ecosystem":"Debian:14","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.47-1"}]}],"versions":["1.34-2","1.34-3","1.34-4","1.36-1","1.36-2","1.36-3"]},{"source":"osv","ecosystem":"Mageia:10","package":"perl-YAML-Syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.470.0-1.mga10"}]}],"bundled":4},{"source":"osv","ecosystem":"Mageia:9","package":"perl-YAML-Syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.470.0-1.mga9"}]}],"bundled":4},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.27-2build2","1.29-1","1.29-1build1","1.29-1ubuntu0.16.04.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.29-1build3","1.29-1ubuntu0.18.04.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.31-1","1.31-1build1","1.31-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.34-1build1","1.34-1build2","1.34-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.34-2","1.34-2build1","1.34-2build2","1.34-2build3","1.34-2ubuntu0.24.04.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"libyaml-syck-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.36-1","1.36-3","1.47-1","1.47-1build1"]},{"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":"openSUSE:Tumbleweed","package":"perl-YAML-Syck","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.470.0-1.1"}]}],"bundled":4},{"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"}],"references":[{"url":"https://metacpan.org/release/TODDR/YAML-Syck-1.47/changes","tags":["release-notes","advisory","web","report"]},{"url":"https://github.com/toddr/YAML-Syck/commit/44c90a109ec3215ee7ce747bd11209835e123d8b.patch","tags":["patch","fix","report"]},{"url":"http://www.openwall.com/lists/oss-security/2026/07/17/3","tags":["web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57076","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-q6x2-vfpr-9j7p"},{"url":"https://security.alpinelinux.org/vuln/CVE-2026-57076","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2026-57076","tags":["advisory"]},{"url":"https://cpan.org/modules","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57076.json","tags":["advisory"]},{"url":"https://github.com/toddr/YAML-Syck","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-57076","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2026-0367.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=35949","tags":["report"]},{"url":"https://www.openwall.com/lists/oss-security/2026/07/17/1","tags":["web"]},{"url":"https://www.openwall.com/lists/oss-security/2026/07/17/2","tags":["web"]},{"url":"https://www.openwall.com/lists/oss-security/2026/07/17/3","tags":["web","report"]},{"url":"https://www.openwall.com/lists/oss-security/2026/07/17/4","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2026-57076","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-57076","tags":["report"]},{"url":"","tags":["advisory"]},{"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"]},{"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-2025-11683","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-57076","title":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor","description":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor.\n\nIn the bundled libsyck an anchor name allocated by syck_strndup is stored both as node-\u003eanchor, freed when the node is freed, and as the key in the parser's anchors table. Freeing the node frees the shared key, and a later anchor redefinition makes st_delete compare against the freed key, so st_strcmp reads freed heap memory. Anchors are a standard YAML feature and need no special flags, so this is reached on the default Load path.\n\nAny caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.","status":"published","published":"2026-07-16T21:40:59.686Z","modified":"2026-07-17T13:07:23.79Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T13:43:44.898272Z"}],"euvd":[{"id":"EUVD-2026-45055","description":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor.\n\nIn the bundled libsyck an anchor name allocated by syck_strndup is stored both as node-\u003eanchor, freed when the node is freed, and as the key in the parser's anchors table. Freeing the node frees the shared key, and a later anchor redefinition makes st_delete compare against the freed key, so st_strcmp reads freed heap memory. Anchors are a standard YAML feature and need no special flags, so this is reached on the default Load path.\n\nAny caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.","status":"published","published":"2026-07-16T21:40:59Z","modified":"2026-07-17T13:07:23Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:19:50.846094Z"}],"ghsa":[{"id":"GHSA-q6x2-vfpr-9j7p","title":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as...","description":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor.\n\nIn the bundled libsyck an anchor name allocated by syck_strndup is stored both as node-\u003eanchor, freed when the node is freed, and as the key in the parser's anchors table. Freeing the node frees the shared key, and a later anchor redefinition makes st_delete compare against the freed key, so st_strcmp reads freed heap memory. Anchors are a standard YAML feature and need no special flags, so this is reached on the default Load path.\n\nAny caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.","status":"published","published":"2026-07-17T00:32:12Z","modified":"2026-07-17T15:33:28Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:09:35.141236Z"}],"nvd":[{"id":"CVE-2026-57076","description":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor.\n\nIn the bundled libsyck an anchor name allocated by syck_strndup is stored both as node-\u003eanchor, freed when the node is freed, and as the key in the parser's anchors table. Freeing the node frees the shared key, and a later anchor redefinition makes st_delete compare against the freed key, so st_strcmp reads freed heap memory. Anchors are a standard YAML feature and need no special flags, so this is reached on the default Load path.\n\nAny caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.","status":"published","published":"2026-07-16T22:17:43.55Z","modified":"2026-10-24T20:10:00.137Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:12:30.250437Z"}],"osv":[{"id":"ALPINE-CVE-2026-57076","description":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor.\n\nIn the bundled libsyck an anchor name allocated by syck_strndup is stored both as node-\u003eanchor, freed when the node is freed, and as the key in the parser's anchors table. Freeing the node frees the shared key, and a later anchor redefinition makes st_delete compare against the freed key, so st_strcmp reads freed heap memory. Anchors are a standard YAML feature and need no special flags, so this is reached on the default Load path.\n\nAny caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.","status":"published","published":"2026-07-16T22:17:43.55Z","modified":"2026-10-01T02:17:49.361446659Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:50.764331Z"},{"id":"BELL-CVE-2026-57076","status":"published","published":"2026-07-18T06:03:10.922877Z","modified":"2026-07-28T07:15:07.715192969Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:24.657778Z"},{"id":"CVE-2026-57076","title":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor","description":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor.\n\nIn the bundled libsyck an anchor name allocated by syck_strndup is stored both as node-\u003eanchor, freed when the node is freed, and as the key in the parser's anchors table. Freeing the node frees the shared key, and a later anchor redefinition makes st_delete compare against the freed key, so st_strcmp reads freed heap memory. Anchors are a standard YAML feature and need no special flags, so this is reached on the default Load path.\n\nAny caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.","status":"published","published":"2026-07-16T21:40:59.686Z","modified":"2026-10-28T02:31:14.826725664Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T15:45:12.016252Z"},{"id":"DEBIAN-CVE-2026-57076","description":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor.  In the bundled libsyck an anchor name allocated by syck_strndup is stored both as node-\u003eanchor, freed when the node is freed, and as the key in the parser's anchors table. Freeing the node frees the shared key, and a later anchor redefinition makes st_delete compare against the freed key, so st_strcmp reads freed heap memory. Anchors are a standard YAML feature and need no special flags, so this is reached on the default Load path.  Any caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.","status":"published","published":"2026-07-16T22:17:43.55Z","modified":"2026-10-25T09:47:35.524392825Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:57.590991Z"},{"id":"UBUNTU-CVE-2026-57076","description":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor. In the bundled libsyck an anchor name allocated by syck_strndup is stored both as node-\u003eanchor, freed when the node is freed, and as the key in the parser's anchors table. Freeing the node frees the shared key, and a later anchor redefinition makes st_delete compare against the freed key, so st_strcmp reads freed heap memory. Anchors are a standard YAML feature and need no special flags, so this is reached on the default Load path. Any caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.","status":"published","published":"2026-07-16T22:17:00Z","modified":"2026-10-17T12:59:11.614078203Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:41.911783Z"},{"id":"AZL-109502","title":"CVE-2026-57076 affecting package perl-YAML 1.30-2","description":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor.\n\nIn the bundled libsyck an anchor name allocated by syck_strndup is stored both as node-\u003eanchor, freed when the node is freed, and as the key in the parser's anchors table. Freeing the node frees the shared key, and a later anchor redefinition makes st_delete compare against the freed key, so st_strcmp reads freed heap memory. Anchors are a standard YAML feature and need no special flags, so this is reached on the default Load path.\n\nAny caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.","status":"published","published":"2026-07-16T22:17:43Z","modified":"2026-10-27T05:36:16Z","updated_at":"2026-11-02T15:28:02.044071Z"},{"id":"AZL-92910","title":"CVE-2026-57076 affecting package perl-YAML-Syck 1.34-1","description":"YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor.\n\nIn the bundled libsyck an anchor name allocated by syck_strndup is stored both as node-\u003eanchor, freed when the node is freed, and as the key in the parser's anchors table. Freeing the node frees the shared key, and a later anchor redefinition makes st_delete compare against the freed key, so st_strcmp reads freed heap memory. Anchors are a standard YAML feature and need no special flags, so this is reached on the default Load path.\n\nAny caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.","status":"published","published":"2026-07-16T22:17:43Z","modified":"2026-11-05T05:36:30Z","updated_at":"2026-11-05T16:41:25.880689Z"},{"id":"MGASA-2026-0367","title":"Updated perl-YAML-Syck packages fix security vulnerabilities","description":"YAML::Syck versions before 1.47 for Perl allow a use-after-free and\ndouble-free via an anchor node freed while still on the parser value\nstack\nYAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via\na signed-char lookup-table index in syck_base64dec\nYAML::Syck versions before 1.47 for Perl allow a heap use-after-free via\nan anchor name reused as an anchors-table key in syck_hdlr_add_anchor\nYAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via\nan unbounded newline scan in newline_len\n","status":"published","published":"2026-09-02T16:59:28Z","modified":"2026-09-02T17:00:05.32927146Z","updated_at":"2026-11-02T15:49:43.795591Z"},{"id":"openSUSE-SU-2026:11299-1","title":"perl-YAML-Syck-1.470.0-1.1 on GA media","description":"These are all security issues fixed in the perl-YAML-Syck-1.470.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-07-17T00:00:00Z","modified":"2026-07-18T08:45:07.171775832Z","updated_at":"2026-11-02T16:58:38.95195Z"},{"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"}]}}