RHSA-2026:39997
Vulnerability from csaf_redhat - Published: 2026-07-15 13:59 - Updated: 2026-09-01 12:55Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
perl:
* perl-5.42.2-524.3.hum1 (aarch64, x86_64)
* perl-Attribute-Handlers-1.03-524.3.hum1 (noarch)
* perl-AutoLoader-5.74-524.3.hum1 (noarch)
* perl-AutoSplit-5.74-524.3.hum1 (noarch)
* perl-B-1.89-524.3.hum1 (aarch64, x86_64)
* perl-Benchmark-1.27-524.3.hum1 (noarch)
* perl-Class-Struct-0.68-524.3.hum1 (noarch)
* perl-Config-Extensions-0.03-524.3.hum1 (noarch)
* perl-DBM_Filter-0.07-524.3.hum1 (noarch)
* perl-Devel-Peek-1.36-524.3.hum1 (aarch64, x86_64)
* perl-Devel-SelfStubber-1.06-524.3.hum1 (noarch)
* perl-DirHandle-1.05-524.3.hum1 (noarch)
* perl-Dumpvalue-2.27-524.3.hum1 (noarch)
* perl-DynaLoader-1.57-524.3.hum1 (aarch64, x86_64)
* perl-English-1.11-524.3.hum1 (noarch)
* perl-Errno-1.38-524.3.hum1 (aarch64, x86_64)
* perl-ExtUtils-Constant-0.25-524.3.hum1 (noarch)
* perl-ExtUtils-Embed-1.35-524.3.hum1 (noarch)
* perl-ExtUtils-Miniperl-1.14-524.3.hum1 (noarch)
* perl-Fcntl-1.20-524.3.hum1 (aarch64, x86_64)
* perl-File-Basename-2.86-524.3.hum1 (noarch)
* perl-File-Compare-1.100.800-524.3.hum1 (noarch)
* perl-File-Copy-2.41-524.3.hum1 (noarch)
* perl-File-DosGlob-1.12-524.3.hum1 (aarch64, x86_64)
* perl-File-Find-1.44-524.3.hum1 (noarch)
* perl-File-stat-1.14-524.3.hum1 (noarch)
* perl-FileCache-1.10-524.3.hum1 (noarch)
* perl-FileHandle-2.05-524.3.hum1 (noarch)
* perl-FindBin-1.54-524.3.hum1 (noarch)
* perl-GDBM_File-1.24-524.3.hum1 (aarch64, x86_64)
* perl-Getopt-Std-1.14-524.3.hum1 (noarch)
* perl-Hash-Util-0.32-524.3.hum1 (aarch64, x86_64)
* perl-Hash-Util-FieldHash-1.27-524.3.hum1 (aarch64, x86_64)
* perl-I18N-Collate-1.02-524.3.hum1 (noarch)
* perl-I18N-LangTags-0.45-524.3.hum1 (noarch)
* perl-I18N-Langinfo-0.24-524.3.hum1 (aarch64, x86_64)
* perl-IO-1.55-524.3.hum1 (aarch64, x86_64)
* perl-IPC-Open3-1.24-524.3.hum1 (noarch)
* perl-Locale-Maketext-Simple-0.21-524.3.hum1 (noarch)
* perl-Math-Complex-1.63-524.3.hum1 (noarch)
* perl-Memoize-1.17-524.3.hum1 (noarch)
* perl-Module-Loaded-0.08-524.3.hum1 (noarch)
* perl-NDBM_File-1.18-524.3.hum1 (aarch64, x86_64)
* perl-NEXT-0.69-524.3.hum1 (noarch)
* perl-Net-1.04-524.3.hum1 (noarch)
* perl-ODBM_File-1.20-524.3.hum1 (aarch64, x86_64)
* perl-Opcode-1.69-524.3.hum1 (aarch64, x86_64)
* perl-POSIX-2.23-524.3.hum1 (aarch64, x86_64)
* perl-Pod-Functions-1.14-524.3.hum1 (noarch)
* perl-Pod-Html-1.35-524.3.hum1 (noarch)
* perl-Safe-2.47-524.3.hum1 (noarch)
* perl-Search-Dict-1.08-524.3.hum1 (noarch)
* perl-SelectSaver-1.02-524.3.hum1 (noarch)
* perl-SelfLoader-1.28-524.3.hum1 (noarch)
* perl-Symbol-1.09-524.3.hum1 (noarch)
* perl-Sys-Hostname-1.25-524.3.hum1 (aarch64, x86_64)
* perl-Term-Complete-1.403-524.3.hum1 (noarch)
* perl-Term-ReadLine-1.17-524.3.hum1 (noarch)
* perl-Test-1.31-524.3.hum1 (noarch)
* perl-Text-Abbrev-1.02-524.3.hum1 (noarch)
* perl-Thread-3.06-524.3.hum1 (noarch)
* perl-Thread-Semaphore-2.13-524.3.hum1 (noarch)
* perl-Tie-4.6-524.3.hum1 (noarch)
* perl-Tie-File-1.10-524.3.hum1 (noarch)
* perl-Tie-Memoize-1.1-524.3.hum1 (noarch)
* perl-Time-1.04-524.3.hum1 (noarch)
* perl-Time-Piece-1.3600-524.3.hum1 (aarch64, x86_64)
* perl-Unicode-UCD-0.81-524.3.hum1 (noarch)
* perl-User-pwent-1.05-524.3.hum1 (noarch)
* perl-autouse-1.11-524.3.hum1 (noarch)
* perl-base-2.27-524.3.hum1 (noarch)
* perl-blib-1.07-524.3.hum1 (noarch)
* perl-debugger-1.60-524.3.hum1 (noarch)
* perl-deprecate-0.04-524.3.hum1 (noarch)
* perl-devel-5.42.2-524.3.hum1 (aarch64, x86_64)
* perl-diagnostics-1.40-524.3.hum1 (noarch)
* perl-doc-5.42.2-524.3.hum1 (noarch)
* perl-encoding-warnings-0.14-524.3.hum1 (noarch)
* perl-fields-2.27-524.3.hum1 (noarch)
* perl-filetest-1.03-524.3.hum1 (noarch)
* perl-if-0.61.000-524.3.hum1 (noarch)
* perl-interpreter-5.42.2-524.3.hum1 (aarch64, x86_64)
* perl-less-0.03-524.3.hum1 (noarch)
* perl-lib-0.65-524.3.hum1 (aarch64, x86_64)
* perl-libnetcfg-5.42.2-524.3.hum1 (noarch)
* perl-libs-5.42.2-524.3.hum1 (aarch64, x86_64)
* perl-locale-1.13-524.3.hum1 (noarch)
* perl-macros-5.42.2-524.3.hum1 (noarch)
* perl-meta-notation-5.42.2-524.3.hum1 (noarch)
* perl-mro-1.29-524.3.hum1 (aarch64, x86_64)
* perl-open-1.13-524.3.hum1 (noarch)
* perl-overload-1.40-524.3.hum1 (noarch)
* perl-overloading-0.02-524.3.hum1 (noarch)
* perl-ph-5.42.2-524.3.hum1 (aarch64, x86_64)
* perl-sigtrap-1.10-524.3.hum1 (noarch)
* perl-sort-2.06-524.3.hum1 (noarch)
* perl-subs-1.04-524.3.hum1 (noarch)
* perl-tests-5.42.2-524.3.hum1 (aarch64, x86_64)
* perl-utils-5.42.2-524.3.hum1 (noarch)
* perl-vars-1.05-524.3.hum1 (noarch)
* perl-vmsish-1.04-524.3.hum1 (noarch)
* perl-5.42.2-524.3.hum1.src (src)
Security Fix(es):
perl:
* CVE-2026-13221
* CVE-2026-57432
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Perl. When the Perl regular expression engine processes patterns with a very large number of alternative fixed strings, an internal data field can overflow. This leads to silently incorrect regular expression matches, causing the engine to either match strings it should not (false positives) or fail to match strings it should (false negatives). If these regular expressions are used for security-sensitive operations like access control or data filtering, this flaw could result in incorrect security decisions.
5.9 (Medium)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:perl-main@aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:perl-main@noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:perl-main@src | — |
Vendor Fix
fix
|
|
| Unresolved product id: Red Hat Hardened Images:perl-main@x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in Perl. An integer overflow vulnerability in the `S_measure_struct` function, specifically when handling `pack` and `unpack` templates with large repeat counts, can lead to an out-of-bounds heap read. This allows an attacker, by providing a specially crafted template, to read sensitive information from memory beyond the intended buffer. This could result in the disclosure of confidential data.
5.0 (Medium)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:perl-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:perl-main@noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:perl-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:perl-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
References
18 references
{
"document": {
"aggregate_severity": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"text": "Moderate"
},
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en",
"notes": [
{
"category": "summary",
"text": "An update for Red Hat Hardened Images RPMs is now available.",
"title": "Topic"
},
{
"category": "general",
"text": "This update includes the following RPMs:\n\nperl:\n * perl-5.42.2-524.3.hum1 (aarch64, x86_64)\n * perl-Attribute-Handlers-1.03-524.3.hum1 (noarch)\n * perl-AutoLoader-5.74-524.3.hum1 (noarch)\n * perl-AutoSplit-5.74-524.3.hum1 (noarch)\n * perl-B-1.89-524.3.hum1 (aarch64, x86_64)\n * perl-Benchmark-1.27-524.3.hum1 (noarch)\n * perl-Class-Struct-0.68-524.3.hum1 (noarch)\n * perl-Config-Extensions-0.03-524.3.hum1 (noarch)\n * perl-DBM_Filter-0.07-524.3.hum1 (noarch)\n * perl-Devel-Peek-1.36-524.3.hum1 (aarch64, x86_64)\n * perl-Devel-SelfStubber-1.06-524.3.hum1 (noarch)\n * perl-DirHandle-1.05-524.3.hum1 (noarch)\n * perl-Dumpvalue-2.27-524.3.hum1 (noarch)\n * perl-DynaLoader-1.57-524.3.hum1 (aarch64, x86_64)\n * perl-English-1.11-524.3.hum1 (noarch)\n * perl-Errno-1.38-524.3.hum1 (aarch64, x86_64)\n * perl-ExtUtils-Constant-0.25-524.3.hum1 (noarch)\n * perl-ExtUtils-Embed-1.35-524.3.hum1 (noarch)\n * perl-ExtUtils-Miniperl-1.14-524.3.hum1 (noarch)\n * perl-Fcntl-1.20-524.3.hum1 (aarch64, x86_64)\n * perl-File-Basename-2.86-524.3.hum1 (noarch)\n * perl-File-Compare-1.100.800-524.3.hum1 (noarch)\n * perl-File-Copy-2.41-524.3.hum1 (noarch)\n * perl-File-DosGlob-1.12-524.3.hum1 (aarch64, x86_64)\n * perl-File-Find-1.44-524.3.hum1 (noarch)\n * perl-File-stat-1.14-524.3.hum1 (noarch)\n * perl-FileCache-1.10-524.3.hum1 (noarch)\n * perl-FileHandle-2.05-524.3.hum1 (noarch)\n * perl-FindBin-1.54-524.3.hum1 (noarch)\n * perl-GDBM_File-1.24-524.3.hum1 (aarch64, x86_64)\n * perl-Getopt-Std-1.14-524.3.hum1 (noarch)\n * perl-Hash-Util-0.32-524.3.hum1 (aarch64, x86_64)\n * perl-Hash-Util-FieldHash-1.27-524.3.hum1 (aarch64, x86_64)\n * perl-I18N-Collate-1.02-524.3.hum1 (noarch)\n * perl-I18N-LangTags-0.45-524.3.hum1 (noarch)\n * perl-I18N-Langinfo-0.24-524.3.hum1 (aarch64, x86_64)\n * perl-IO-1.55-524.3.hum1 (aarch64, x86_64)\n * perl-IPC-Open3-1.24-524.3.hum1 (noarch)\n * perl-Locale-Maketext-Simple-0.21-524.3.hum1 (noarch)\n * perl-Math-Complex-1.63-524.3.hum1 (noarch)\n * perl-Memoize-1.17-524.3.hum1 (noarch)\n * perl-Module-Loaded-0.08-524.3.hum1 (noarch)\n * perl-NDBM_File-1.18-524.3.hum1 (aarch64, x86_64)\n * perl-NEXT-0.69-524.3.hum1 (noarch)\n * perl-Net-1.04-524.3.hum1 (noarch)\n * perl-ODBM_File-1.20-524.3.hum1 (aarch64, x86_64)\n * perl-Opcode-1.69-524.3.hum1 (aarch64, x86_64)\n * perl-POSIX-2.23-524.3.hum1 (aarch64, x86_64)\n * perl-Pod-Functions-1.14-524.3.hum1 (noarch)\n * perl-Pod-Html-1.35-524.3.hum1 (noarch)\n * perl-Safe-2.47-524.3.hum1 (noarch)\n * perl-Search-Dict-1.08-524.3.hum1 (noarch)\n * perl-SelectSaver-1.02-524.3.hum1 (noarch)\n * perl-SelfLoader-1.28-524.3.hum1 (noarch)\n * perl-Symbol-1.09-524.3.hum1 (noarch)\n * perl-Sys-Hostname-1.25-524.3.hum1 (aarch64, x86_64)\n * perl-Term-Complete-1.403-524.3.hum1 (noarch)\n * perl-Term-ReadLine-1.17-524.3.hum1 (noarch)\n * perl-Test-1.31-524.3.hum1 (noarch)\n * perl-Text-Abbrev-1.02-524.3.hum1 (noarch)\n * perl-Thread-3.06-524.3.hum1 (noarch)\n * perl-Thread-Semaphore-2.13-524.3.hum1 (noarch)\n * perl-Tie-4.6-524.3.hum1 (noarch)\n * perl-Tie-File-1.10-524.3.hum1 (noarch)\n * perl-Tie-Memoize-1.1-524.3.hum1 (noarch)\n * perl-Time-1.04-524.3.hum1 (noarch)\n * perl-Time-Piece-1.3600-524.3.hum1 (aarch64, x86_64)\n * perl-Unicode-UCD-0.81-524.3.hum1 (noarch)\n * perl-User-pwent-1.05-524.3.hum1 (noarch)\n * perl-autouse-1.11-524.3.hum1 (noarch)\n * perl-base-2.27-524.3.hum1 (noarch)\n * perl-blib-1.07-524.3.hum1 (noarch)\n * perl-debugger-1.60-524.3.hum1 (noarch)\n * perl-deprecate-0.04-524.3.hum1 (noarch)\n * perl-devel-5.42.2-524.3.hum1 (aarch64, x86_64)\n * perl-diagnostics-1.40-524.3.hum1 (noarch)\n * perl-doc-5.42.2-524.3.hum1 (noarch)\n * perl-encoding-warnings-0.14-524.3.hum1 (noarch)\n * perl-fields-2.27-524.3.hum1 (noarch)\n * perl-filetest-1.03-524.3.hum1 (noarch)\n * perl-if-0.61.000-524.3.hum1 (noarch)\n * perl-interpreter-5.42.2-524.3.hum1 (aarch64, x86_64)\n * perl-less-0.03-524.3.hum1 (noarch)\n * perl-lib-0.65-524.3.hum1 (aarch64, x86_64)\n * perl-libnetcfg-5.42.2-524.3.hum1 (noarch)\n * perl-libs-5.42.2-524.3.hum1 (aarch64, x86_64)\n * perl-locale-1.13-524.3.hum1 (noarch)\n * perl-macros-5.42.2-524.3.hum1 (noarch)\n * perl-meta-notation-5.42.2-524.3.hum1 (noarch)\n * perl-mro-1.29-524.3.hum1 (aarch64, x86_64)\n * perl-open-1.13-524.3.hum1 (noarch)\n * perl-overload-1.40-524.3.hum1 (noarch)\n * perl-overloading-0.02-524.3.hum1 (noarch)\n * perl-ph-5.42.2-524.3.hum1 (aarch64, x86_64)\n * perl-sigtrap-1.10-524.3.hum1 (noarch)\n * perl-sort-2.06-524.3.hum1 (noarch)\n * perl-subs-1.04-524.3.hum1 (noarch)\n * perl-tests-5.42.2-524.3.hum1 (aarch64, x86_64)\n * perl-utils-5.42.2-524.3.hum1 (noarch)\n * perl-vars-1.05-524.3.hum1 (noarch)\n * perl-vmsish-1.04-524.3.hum1 (noarch)\n * perl-5.42.2-524.3.hum1.src (src)\n\nSecurity Fix(es):\n\nperl:\n * CVE-2026-13221\n * CVE-2026-57432",
"title": "Details"
},
{
"category": "legal_disclaimer",
"text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
"title": "Terms of Use"
}
],
"publisher": {
"category": "vendor",
"contact_details": "https://access.redhat.com/security/team/contact/",
"issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
"name": "Red Hat Product Security",
"namespace": "https://www.redhat.com"
},
"references": [
{
"category": "self",
"summary": "https://access.redhat.com/errata/RHSA-2026:39997",
"url": "https://access.redhat.com/errata/RHSA-2026:39997"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/cve/CVE-2026-13221",
"url": "https://access.redhat.com/security/cve/CVE-2026-13221"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/cve/CVE-2026-57432",
"url": "https://access.redhat.com/security/cve/CVE-2026-57432"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/updates/classification/",
"url": "https://access.redhat.com/security/updates/classification/"
},
{
"category": "external",
"summary": "https://images.redhat.com/",
"url": "https://images.redhat.com/"
},
{
"category": "self",
"summary": "Canonical URL",
"url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_39997.json"
}
],
"title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update",
"tracking": {
"current_release_date": "2026-09-01T12:55:13+00:00",
"generator": {
"date": "2026-09-01T12:55:13+00:00",
"engine": {
"name": "Red Hat SDEngine",
"version": "5.3.16"
}
},
"id": "RHSA-2026:39997",
"initial_release_date": "2026-07-15T13:59:38+00:00",
"revision_history": [
{
"date": "2026-07-15T13:59:38+00:00",
"number": "1",
"summary": "Initial version"
},
{
"date": "2026-08-22T06:15:42+00:00",
"number": "2",
"summary": "Last updated version"
},
{
"date": "2026-09-01T12:55:13+00:00",
"number": "3",
"summary": "Last generated version"
}
],
"status": "final",
"version": "3"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Red Hat Hardened Images",
"product": {
"name": "Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images",
"product_identification_helper": {
"cpe": "cpe:/a:redhat:hummingbird:1"
}
}
}
],
"category": "product_family",
"name": "Red Hat Hardened Images"
},
{
"branches": [
{
"category": "product_version",
"name": "perl-main@aarch64",
"product": {
"name": "perl-main@aarch64",
"product_id": "perl-main@aarch64",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/perl@5.42.2-524.3.hum1?arch=aarch64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-aarch64-rpms"
}
}
}
],
"category": "architecture",
"name": "aarch64"
},
{
"branches": [
{
"category": "product_version",
"name": "perl-main@src",
"product": {
"name": "perl-main@src",
"product_id": "perl-main@src",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/perl@5.42.2-524.3.hum1?arch=src\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-source-rpms"
}
}
}
],
"category": "architecture",
"name": "src"
},
{
"branches": [
{
"category": "product_version",
"name": "perl-main@x86_64",
"product": {
"name": "perl-main@x86_64",
"product_id": "perl-main@x86_64",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/perl@5.42.2-524.3.hum1?arch=x86_64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
}
}
}
],
"category": "architecture",
"name": "x86_64"
},
{
"branches": [
{
"category": "product_version",
"name": "perl-main@noarch",
"product": {
"name": "perl-main@noarch",
"product_id": "perl-main@noarch",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/perl-Attribute-Handlers@1.03-524.3.hum1?arch=noarch\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
}
}
}
],
"category": "architecture",
"name": "noarch"
}
],
"category": "vendor",
"name": "Red Hat"
}
],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
"name": "perl-main@aarch64 as a component of Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images:perl-main@aarch64"
},
"product_reference": "perl-main@aarch64",
"relates_to_product_reference": "Red Hat Hardened Images"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "perl-main@noarch as a component of Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images:perl-main@noarch"
},
"product_reference": "perl-main@noarch",
"relates_to_product_reference": "Red Hat Hardened Images"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "perl-main@src as a component of Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images:perl-main@src"
},
"product_reference": "perl-main@src",
"relates_to_product_reference": "Red Hat Hardened Images"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "perl-main@x86_64 as a component of Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images:perl-main@x86_64"
},
"product_reference": "perl-main@x86_64",
"relates_to_product_reference": "Red Hat Hardened Images"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-13221",
"cwe": {
"id": "CWE-625",
"name": "Permissive Regular Expression"
},
"discovery_date": "2026-07-13T17:01:13.173015+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2499727"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Perl. When the Perl regular expression engine processes patterns with a very large number of alternative fixed strings, an internal data field can overflow. This leads to silently incorrect regular expression matches, causing the engine to either match strings it should not (false positives) or fail to match strings it should (false negatives). If these regular expressions are used for security-sensitive operations like access control or data filtering, this flaw could result in incorrect security decisions.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "perl: Perl: Incorrect regular expression processing via large regular expressions",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat Product Security has rated this vulnerability moderate as exploiting it requires local access as well as complex buffer overflows to get access to running arbitrary code. Also a successful attack will depend strongly on the script that is housing the vulnerable regular expression. No production script should implicitly trust data and make security decisions, so the impact for a successful exploitation is very low.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Hardened Images:perl-main@aarch64",
"Red Hat Hardened Images:perl-main@noarch",
"Red Hat Hardened Images:perl-main@src",
"Red Hat Hardened Images:perl-main@x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-13221"
},
{
"category": "external",
"summary": "RHBZ#2499727",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2499727"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-13221",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-13221"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-13221",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13221"
},
{
"category": "external",
"summary": "https://github.com/Perl/perl5/commit/03f74bbbd3a68350d926ee93d56ee4808c28c4c7.patch",
"url": "https://github.com/Perl/perl5/commit/03f74bbbd3a68350d926ee93d56ee4808c28c4c7.patch"
},
{
"category": "external",
"summary": "https://github.com/Perl/perl5/issues/23388",
"url": "https://github.com/Perl/perl5/issues/23388"
}
],
"release_date": "2026-07-13T15:40:11.035000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-15T13:59:38+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:perl-main@aarch64",
"Red Hat Hardened Images:perl-main@noarch",
"Red Hat Hardened Images:perl-main@src",
"Red Hat Hardened Images:perl-main@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:39997"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:perl-main@aarch64",
"Red Hat Hardened Images:perl-main@noarch",
"Red Hat Hardened Images:perl-main@src",
"Red Hat Hardened Images:perl-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "perl: Perl: Incorrect regular expression processing via large regular expressions"
},
{
"cve": "CVE-2026-57432",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2026-07-13T17:01:22.129480+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2499729"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Perl. An integer overflow vulnerability in the `S_measure_struct` function, specifically when handling `pack` and `unpack` templates with large repeat counts, can lead to an out-of-bounds heap read. This allows an attacker, by providing a specially crafted template, to read sensitive information from memory beyond the intended buffer. This could result in the disclosure of confidential data.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "perl: Perl: Information disclosure via integer overflow in pack/unpack operations",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat is aware of this vulnerability in Perl\u0027s pack and unpack built-in functions. Exploitation requires an application to pass attacker-controlled data as a pack or unpack template, which is an uncommon programming pattern. In typical usage, templates are hardcoded in source code and not derived from untrusted input, which significantly limits the practical exploitability of this flaw.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"Red Hat Hardened Images:perl-main@aarch64",
"Red Hat Hardened Images:perl-main@noarch",
"Red Hat Hardened Images:perl-main@src",
"Red Hat Hardened Images:perl-main@x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-57432"
},
{
"category": "external",
"summary": "RHBZ#2499729",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2499729"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-57432",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-57432"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-57432",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57432"
},
{
"category": "external",
"summary": "https://github.com/Perl/perl5/commit/40754edc72dd3e513d758153c0e2f0215897740e.patch",
"url": "https://github.com/Perl/perl5/commit/40754edc72dd3e513d758153c0e2f0215897740e.patch"
},
{
"category": "external",
"summary": "https://github.com/Perl/perl5/commit/5f7eb6bbbe0510964e3fb1d6bb691e5445913e55.patch",
"url": "https://github.com/Perl/perl5/commit/5f7eb6bbbe0510964e3fb1d6bb691e5445913e55.patch"
}
],
"release_date": "2026-07-13T15:38:20.728000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-15T13:59:38+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
"product_ids": [
"Red Hat Hardened Images:perl-main@aarch64",
"Red Hat Hardened Images:perl-main@noarch",
"Red Hat Hardened Images:perl-main@src",
"Red Hat Hardened Images:perl-main@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:39997"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
"product_ids": [
"Red Hat Hardened Images:perl-main@aarch64",
"Red Hat Hardened Images:perl-main@noarch",
"Red Hat Hardened Images:perl-main@src",
"Red Hat Hardened Images:perl-main@x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:perl-main@aarch64",
"Red Hat Hardened Images:perl-main@noarch",
"Red Hat Hardened Images:perl-main@src",
"Red Hat Hardened Images:perl-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "perl: Perl: Information disclosure via integer overflow in pack/unpack operations"
}
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Loading…
Loading…