CVE catalog
CVE-2026-12844
List::SomeUtils::XS versions before 0.59 for Perl have…
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 <<= 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.
- Severity
- High · CVSS 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.66% · Oct 27, 2026
Projects and upstream resources
Reported versions and fixes
Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.
Version impact has not been established. The original provider fields are retained below.
Provider details and historical evidence
Original provider fields
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},
{
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"status": "vulnerable",
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"version": "0.58-3"
},
{
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}
],
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},
{
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},
{
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},
{
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]
}Publisher notes
[trixie] liblist-someutils-xs-perl: Minor issue [bookworm] liblist-someutils-xs-perl: Minor issue
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [liblist-someutils-xs-perl]Unknown
Details (2)
0.58-3· amd64 · bookwormAffected
nvd · liblist-someutils-xs-perl · debian · bookworm; nvd · liblist-someutils-xs-perl · debian · 12
0.58-3· arm64 · bookwormAffected
nvd · liblist-someutils-xs-perl · debian · bookworm; nvd · liblist-someutils-xs-perl · debian · 12
[Debian 13 (Trixie)]
- [liblist-someutils-xs-perl]Unknown
Source package: [liblist-someutils-xs-perl]
Details (2)
0.58-3+b3· amd64 · trixieAffected
nvd · liblist-someutils-xs-perl · debian · 13
0.58-3+b3· arm64 · trixieAffected
nvd · liblist-someutils-xs-perl · debian · 13
[openSUSE Tumbleweed]
- [perl-List-SomeUtils-XS]Unknown
Source package: [perl-List-SomeUtils-XS]
Details (1)
0.590.0-1.3· x86_64 · tumbleweedFixed · Fixed:
0.590.0-1.1nvd · perl-List-SomeUtils-XS · opensuse · tumbleweed
Observed:
References
- [http://www.openwall.com/lists/oss-security/2026/06/25/11]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11179-1.json]
- [https://github.com/houseabsolute/List-SomeUtils-XS/commit/22549f78669b780d6aa338a2d2e49a3dedfffaa6.patch]
- [https://metacpan.org/release/DROLSKY/List-SomeUtils-XS-0.59/changes]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-12844]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-12844]
- [https://osv.dev/vulnerability/SUSE-SU-2026:22559-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:2845-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-12844]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11179-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21218-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-12844]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12844.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]