{"id":"CVE-2026-12844","aliases":["DEBIAN-CVE-2026-12844","EUVD-2026-39444","GHSA-h2pv-qmv8-hvcv","MGASA-2026-0244","SUSE-SU-2026:22559-1","SUSE-SU-2026:2845-1","UBUNTU-CVE-2026-12844","openSUSE-SU-2026:11179-1","openSUSE-SU-2026:21218-1"],"status":"published","title":"List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function","description":"List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function.\n\npairwise() collects the values returned by the block into a heap buffer sized to the longer input array, then grows the buffer before each copy with a single quadrupling (alloc \u003c\u003c= 2) instead of a loop. A block call that returns more than four times the current allocation in one invocation outgrows that one quadrupling, and the copy writes past the end of the buffer.\n\nAny caller of pairwise() whose block returns, for a single pair, more than four times the longer input array's length writes past the buffer and corrupts the heap.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00659,"percentile":0.51858,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-122","CWE-787"],"published":"2026-06-25T15:26:09Z","modified":"2026-10-28T11:09:56Z","fixes":[{"ecosystem":"Debian:14","package":"liblist-someutils-xs-perl","fixed_in":["0.59-1"],"sources":["osv"]},{"ecosystem":"Mageia:10","package":"perl-List-SomeUtils-XS","fixed_in":["0.590.0-1.mga10"],"sources":["osv"]},{"ecosystem":"Mageia:9","package":"perl-List-SomeUtils-XS","fixed_in":["0.580.0-10.1.mga9"],"sources":["osv"]},{"ecosystem":"SUSE:Linux Enterprise Server 16.0","package":"perl-List-SomeUtils-XS","fixed_in":["0.58-160000.3.2"],"sources":["osv"]},{"ecosystem":"SUSE:Linux Enterprise Server for SAP applications 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16.0","package":"perl-List-SomeUtils-XS","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.58-160000.3.2"}]}]}],"products":[{"vendor":"drolsky","product":"list::someutils::xs"}],"references":[{"url":"https://github.com/houseabsolute/List-SomeUtils-XS/commit/22549f78669b780d6aa338a2d2e49a3dedfffaa6.patch","tags":["patch","fix"]},{"url":"https://metacpan.org/release/DROLSKY/List-SomeUtils-XS-0.59/changes","tags":["release-notes","advisory","web"]},{"url":"http://www.openwall.com/lists/oss-security/2026/06/25/11","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12844","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-h2pv-qmv8-hvcv"},{"url":"https://cpan.org/modules","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/12xxx/CVE-2026-12844.json","tags":["advisory"]},{"url":"https://github.com/houseabsolute/List-SomeUtils-XS","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-12844","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2026-0244.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=35757","tags":["report"]},{"url":"https://www.openwall.com/lists/oss-security/2026/06/25/11","tags":["web","report"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-202622559-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1269210","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2026-12844","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2026/suse-su-20262845-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-12844","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-12844","tags":["report"]},{"url":"","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-12844","title":"List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function","description":"List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function.\n\npairwise() collects the values returned by the block into a heap buffer sized to the longer input array, then grows the buffer before each copy with a single quadrupling (alloc \u003c\u003c= 2) instead of a loop. A block call that returns more than four times the current allocation in one invocation outgrows that one quadrupling, and the copy writes past the end of the buffer.\n\nAny caller of pairwise() whose block returns, for a single pair, more than four times the longer input array's length writes past the buffer and corrupts the heap.","status":"published","published":"2026-06-25T15:26:09.331Z","modified":"2026-06-25T19:35:16.577Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-787","CWE-122"],"updated_at":"2026-11-02T14:19:47.998488Z"}],"euvd":[{"id":"EUVD-2026-39444","description":"List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function.\n\npairwise() collects the values returned by the block into a heap buffer sized to the longer input array, then grows the buffer before each copy with a single quadrupling (alloc \u003c\u003c= 2) instead of a loop. A block call that returns more than four times the current allocation in one invocation outgrows that one quadrupling, and the copy writes past the end of the buffer.\n\nAny caller of pairwise() whose block returns, for a single pair, more than four times the longer input array's length writes past the buffer and corrupts the heap.","status":"published","published":"2026-06-25T15:26:09Z","modified":"2026-06-25T19:35:16Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T18:20:25.316004Z"}],"ghsa":[{"id":"GHSA-h2pv-qmv8-hvcv","title":"List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise...","description":"List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function.\n\npairwise() collects the values returned by the block into a heap buffer sized to the longer input array, then grows the buffer before each copy with a single quadrupling (alloc \u003c\u003c= 2) instead of a loop. A block call that returns more than four times the current allocation in one invocation outgrows that one quadrupling, and the copy writes past the end of the buffer.\n\nAny caller of pairwise() whose block returns, for a single pair, more than four times the longer input array's length writes past the buffer and corrupts the heap.","status":"published","published":"2026-06-25T18:30:38Z","modified":"2026-06-25T21:32:34Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-122"],"updated_at":"2026-11-02T15:08:59.978633Z"}],"nvd":[{"id":"CVE-2026-12844","description":"List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function.\n\npairwise() collects the values returned by the block into a heap buffer sized to the longer input array, then grows the buffer before each copy with a single quadrupling (alloc \u003c\u003c= 2) instead of a loop. A block call that returns more than four times the current allocation in one invocation outgrows that one quadrupling, and the copy writes past the end of the buffer.\n\nAny caller of pairwise() whose block returns, for a single pair, more than four times the longer input array's length writes past the buffer and corrupts the heap.","status":"published","published":"2026-06-25T16:16:33.097Z","modified":"2026-10-25T22:10:00.15Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-122","CWE-787"],"updated_at":"2026-11-02T14:12:26.045561Z"}],"osv":[{"id":"CVE-2026-12844","title":"List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function","description":"List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function.\n\npairwise() collects the values returned by the block into a heap buffer sized to the longer input array, then grows the buffer before each copy with a single quadrupling (alloc \u003c\u003c= 2) instead of a loop. A block call that returns more than four times the current allocation in one invocation outgrows that one quadrupling, and the copy writes past the end of the buffer.\n\nAny caller of pairwise() whose block returns, for a single pair, more than four times the longer input array's length writes past the buffer and corrupts the heap.","status":"published","published":"2026-06-25T15:26:09.331Z","modified":"2026-10-28T11:09:56.013456591Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-122","CWE-787"],"updated_at":"2026-11-02T15:44:57.354194Z"},{"id":"DEBIAN-CVE-2026-12844","description":"List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function.  pairwise() collects the values returned by the block into a heap buffer sized to the longer input array, then grows the buffer before each copy with a single quadrupling (alloc \u003c\u003c= 2) instead of a loop. A block call that returns more than four times the current allocation in one invocation outgrows that one quadrupling, and the copy writes past the end of the buffer.  Any caller of pairwise() whose block returns, for a single pair, more than four times the longer input array's length writes past the buffer and corrupts the heap.","status":"published","published":"2026-06-25T16:16:33.097Z","modified":"2026-10-26T11:47:34.315212494Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:51.374409Z"},{"id":"UBUNTU-CVE-2026-12844","description":"List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer overflow in the pairwise function. pairwise() collects the values returned by the block into a heap buffer sized to the longer input array, then grows the buffer before each copy with a single quadrupling (alloc \u003c\u003c= 2) instead of a loop. A block call that returns more than four times the current allocation in one invocation outgrows that one quadrupling, and the copy writes past the end of the buffer. Any caller of pairwise() whose block returns, for a single pair, more than four times the longer input array's length writes past the buffer and corrupts the heap.","status":"published","published":"2026-06-25T16:16:00Z","modified":"2026-06-29T23:15:17.405463666Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:00.592716Z"},{"id":"MGASA-2026-0244","title":"Updated perl-List-SomeUtils-XS packages fix security vulnerability","description":"List::SomeUtils::XS versions before 0.59 for Perl have a heap buffer\noverflow in the pairwise function. (CVE-2026-12844)\n","status":"published","published":"2026-07-13T21:24:46Z","modified":"2026-07-13T21:30:06.062235267Z","updated_at":"2026-11-02T15:49:43.795591Z"},{"id":"openSUSE-SU-2026:11179-1","title":"perl-List-SomeUtils-XS-0.590.0-1.1 on GA media","description":"These are all security issues fixed in the perl-List-SomeUtils-XS-0.590.0-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-07-02T00:00:00Z","modified":"2026-07-03T11:00:06.993753081Z","updated_at":"2026-11-02T16:58:38.95195Z"},{"id":"openSUSE-SU-2026:21218-1","title":"Security update for perl-List-SomeUtils-XS","description":"This update for perl-List-SomeUtils-XS fixes the following issue\n\n- CVE-2026-12844: heap buffer overflow in the `pairwise` function (bsc#1269210).\n","status":"published","published":"2026-07-06T20:10:17Z","modified":"2026-07-09T10:00:04.592857607Z","updated_at":"2026-11-02T16:58:41.885092Z"},{"id":"SUSE-SU-2026:22559-1","title":"Security update for perl-List-SomeUtils-XS","description":"This update for perl-List-SomeUtils-XS fixes the following issue\n\n- CVE-2026-12844: heap buffer overflow in the `pairwise` function (bsc#1269210).\n","status":"published","published":"2026-07-06T20:10:18Z","modified":"2026-07-15T18:24:11.200701058Z","updated_at":"2026-11-02T15:54:03.080707Z"},{"id":"SUSE-SU-2026:2845-1","title":"Security update for perl-List-SomeUtils-XS","description":"This update for perl-List-SomeUtils-XS fixes the following issue\n\n- CVE-2026-12844: heap buffer overflow in the `pairwise` function (bsc#1269210).\n","status":"published","published":"2026-07-10T10:30:59Z","modified":"2026-07-11T09:15:05.174911137Z","updated_at":"2026-11-02T15:54:04.987808Z"}]}}