Fix CVE(s): CVE-2026-13221, CVE-2026-57432
* SECURITY UPDATE: silently incorrect regular expression matches from oversized tries - debian/patches/CVE-2026-13221.patch: skip building a trie when the delta between the first branch and the shared tail would overflow the 16-bit next_off field in S_study_chunk() in regcomp.c; add a regression test in t/re/pat_advanced.t; backported from upstream commit 03f74bbbd3a68350d926ee93d56ee4808c28c4c7. - CVE-2026-13221 * SECURITY UPDATE: out-of-bounds heap read in pack/unpack - debian/patches/CVE-2026-57432.patch: croak when the computed structure size would overflow SSize_t and harden the B/b and H/h length calculations in S_measure_struct() in pp_pack.c; document the new diagnostic in pod/perldiag.pod; backported from upstream commits 5f7eb6bbbe0510964e3fb1d6bb691e5445913e55 and 40754edc72dd3e513d758153c0e2f0215897740e. - CVE-2026-57432
- Products
- libperl-dev, libperl5.30, perl, perl-base, perl-debug, perl-doc, perl-modules-5.30
- Affected versions
- Not specified
- Fixed versions
- 5.30.0-9ubuntu0.5+tuxcare.els3
- CVEs
- CVE-2026-13221, CVE-2026-57432
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:44 UTC · Revision 1
Source evidence
Fix CVE(s): CVE-2026-13221, CVE-2026-57432
core-osv · Original sourcePublished 17 Jul 2026, 13:43 UTC
* SECURITY UPDATE: silently incorrect regular expression matches from oversized tries - debian/patches/CVE-2026-13221.patch: skip building a trie when the delta between the first branch and the shared tail would overflow the 16-bit next_off field in S_study_chunk() in regcomp.c; add a regression test in t/re/pat_advanced.t; backported from upstream commit 03f74bbbd3a68350d926ee93d56ee4808c28c4c7. - CVE-2026-13221 * SECURITY UPDATE: out-of-bounds heap read in pack/unpack - debian/patches/CVE-2026-57432.patch: croak when the computed structure size would overflow SSize_t and harden the B/b and H/h length calculations in S_measure_struct() in pp_pack.c; document the new diagnostic in pod/perldiag.pod; backported from upstream commits 5f7eb6bbbe0510964e3fb1d6bb691e5445913e55 and 40754edc72dd3e513d758153c0e2f0215897740e. - CVE-2026-57432
osv:CLSA-2026-1784295790
libperl-dev
Fixed versions: 5.30.0-9ubuntu0.5+tuxcare.els3
libperl5.30
Fixed versions: 5.30.0-9ubuntu0.5+tuxcare.els3
perl
Fixed versions: 5.30.0-9ubuntu0.5+tuxcare.els3
perl-base
Fixed versions: 5.30.0-9ubuntu0.5+tuxcare.els3
perl-debug
Fixed versions: 5.30.0-9ubuntu0.5+tuxcare.els3
perl-doc
Fixed versions: 5.30.0-9ubuntu0.5+tuxcare.els3
perl-modules-5.30
Fixed versions: 5.30.0-9ubuntu0.5+tuxcare.els3
Complete source record
{
"id": "a9200924c48db650fc3dda0b16a6de51f42c7c43486620cc7b19d9d8ccdd840c",
"url": "https://osv.dev/vulnerability/CLSA-2026-1784295790",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix CVE(s): CVE-2026-13221, CVE-2026-57432",
"summary": "* SECURITY UPDATE: silently incorrect regular expression matches from oversized tries - debian/patches/CVE-2026-13221.patch: skip building a trie when the delta between the first branch and the shared tail would overflow the 16-bit next_off field in S_study_chunk() in regcomp.c; add a regression test in t/re/pat_advanced.t; backported from upstream commit 03f74bbbd3a68350d926ee93d56ee4808c28c4c7. - CVE-2026-13221 * SECURITY UPDATE: out-of-bounds heap read in pack/unpack - debian/patches/CVE-2026-57432.patch: croak when the computed structure size would overflow SSize_t and harden the B/b and H/h length calculations in S_measure_struct() in pp_pack.c; document the new diagnostic in pod/perldiag.pod; backported from upstream commits 5f7eb6bbbe0510964e3fb1d6bb691e5445913e55 and 40754edc72dd3e513d758153c0e2f0215897740e. - CVE-2026-57432",
"evidence": "osv:CLSA-2026-1784295790",
"products": [
{
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"evidence": "/affected/0/package/name"
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{
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{
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"evidence": "/affected/2/ranges"
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"affected_versions": []
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{
"name": {
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"evidence": "/affected/3/package/name"
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"evidence": "/affected/3/ranges"
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"affected_versions": []
},
{
"name": {
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"evidence": "/affected/4/ranges"
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],
"affected_versions": []
},
{
"name": {
"value": "perl-doc",
"evidence": "/affected/5/package/name"
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"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/5/ranges"
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],
"affected_versions": []
},
{
"name": {
"value": "perl-modules-5.30",
"evidence": "/affected/6/package/name"
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],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1784295790",
"aliases": [
"CLSA-2026-1784295790"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
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}
]
}
],
"package": {
"name": "libperl-dev",
"purl": "pkg:deb/tuxcare/libperl-dev?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784295790.json"
}
},
{
"ranges": [
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{
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],
"package": {
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"purl": "pkg:deb/tuxcare/libperl5.30?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
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"database_specific": {
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{
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],
"package": {
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"purl": "pkg:deb/tuxcare/perl?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784295790.json"
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},
{
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{
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],
"package": {
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"purl": "pkg:deb/tuxcare/perl-base?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784295790.json"
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},
{
"ranges": [
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{
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],
"package": {
"name": "perl-debug",
"purl": "pkg:deb/tuxcare/perl-debug?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784295790.json"
}
},
{
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],
"package": {
"name": "perl-doc",
"purl": "pkg:deb/tuxcare/perl-doc?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784295790.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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{
"introduced": "0"
},
{
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}
]
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],
"package": {
"name": "perl-modules-5.30",
"purl": "pkg:deb/tuxcare/perl-modules-5.30?distro=ubuntu-20.04",
"ecosystem": "TuxCare:Ubuntu:20.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1784295790.json"
}
}
],
"modified": "2026-10-26T09:32:05.535348709Z",
"provider": "osv",
"upstream": [
"CVE-2026-13221",
"CVE-2026-57432"
],
"references": [
"https://errata.tuxcare.com/els_os/ubuntu20.04els/CLSA-2026-1784295790.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-13221",
"https://nvd.nist.gov/vuln/detail/CVE-2026-57432"
]
},
"related_cves": [
{
"value": "CVE-2026-13221",
"evidence": "/upstream"
},
{
"value": "CVE-2026-57432",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449695,
"published_at": "2026-07-17T13:43:39+00:00"
}