Vulnerability-Lookup

SUSE-SU-2026:3334-1

Vulnerability from csaf_suse - Published: 2026-07-28 09:41 - Updated: 2026-09-17 16:36

Summary

Security update for perl-HTTP-Date

Severity

Moderate

Notes

Title of the patch: Security update for perl-HTTP-Date

Description of the patch: This update for perl-HTTP-Date fixes the following issue: - CVE-2026-14741: CPU exhaustion due to polynomial regex backtracking in `parse_date` when processing specially crafted date strings (bsc#1271705).

Patchnames: SUSE-2026-3334,SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-3334

CVE-2026-14741

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

Recommended 4 products

Product	Version	Remediation
Unresolved product id: SUSE Linux Enterprise High Performance Computing 12 SP5:perl-HTTP-Date-0:6.02-9.3.1.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 12 SP5:perl-HTTP-Date-0:6.02-9.3.1.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:perl-HTTP-Date-0:6.02-9.3.1.noarch	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP5:perl-HTTP-Date-0:6.02-9.3.1.noarch	—	Vendor Fix

Threats

Impact moderate

References

8 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://www.suse.com/support/update/announcement/…	self
https://lists.suse.com/pipermail/sle-security-upd…	self
https://bugzilla.suse.com/1271705	self
https://www.suse.com/security/cve/CVE-2026-14741/	self
https://www.suse.com/security/cve/CVE-2026-14741	external
https://bugzilla.suse.com/1271705	external

JSON

To clipboard

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        {
          "category": "general",
          "text": "HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtracking in parse_date.\n\nparse_date() matches the date string against a chain of alternative regexes, and str2time() delegates to it. Several of these patterns place unbounded quantifiers next to each other before a trailing `\\s*$` anchor. A valid date prefix followed by a long interior run of digits, letters, or whitespace and a single trailing byte that defeats the final match forces the engine to repartition the run, giving polynomial (about quadratic) backtracking. A header value of a few tens of kilobytes runs for tens of seconds of CPU.\n\nHTTP::Date parses timestamps such as HTTP `Date`, `Expires`, and `Last-Modified` headers, which commonly originate from untrusted sources. Any caller that passes an untrusted date header to str2time() or parse_date() can be driven to consume unbounded CPU, a denial of service.",
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}

CVE-2026-14741 (GCVE-0-2026-14741)

Vulnerability from cvelistv5 – Published: 2026-07-17 15:20 – Updated: 2026-08-12 18:47

Title

HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtracking in parse_date

Summary

HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtracking in parse_date. parse_date() matches the date string against a chain of alternative regexes, and str2time() delegates to it. Several of these patterns place unbounded quantifiers next to each other before a trailing `\s*$` anchor. A valid date prefix followed by a long interior run of digits, letters, or whitespace and a single trailing byte that defeats the final match forces the engine to repartition the run, giving polynomial (about quadratic) backtracking. A header value of a few tens of kilobytes runs for tens of seconds of CPU. HTTP::Date parses timestamps such as HTTP `Date`, `Expires`, and `Last-Modified` headers, which commonly originate from untrusted sources. Any caller that passes an untrusted date header to str2time() or parse_date() can be driven to consume unbounded CPU, a denial of service.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-12 18:47 UTC

CWE

CWE-1333 - Inefficient Regular Expression Complexity

Assigner

CPANSec redhat root

References

4 references

URL	Tags
https://github.com/libwww-perl/HTTP-Date/commit/7…	patch
https://github.com/libwww-perl/HTTP-Date/pull/33	issue-tracking
https://metacpan.org/release/OALDERS/HTTP-Date-6.…	release-notes
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
OALDERS	HTTP::Date	Affected: 0 , < 6.08 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-12T18:47:05.416355Z",
                "version": "2.0.3"
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              "type": "ssvc"
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          }
        ],
        "providerMetadata": {
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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        ],
        "title": "CVE Program Container"
      }
    ],
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              "version": "0",
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        {
          "lang": "en",
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            {
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              "description": "CWE-1333 Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
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      "providerMetadata": {
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        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
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          "tags": [
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            "issue-tracking"
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          "url": "https://github.com/libwww-perl/HTTP-Date/pull/33"
        },
        {
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            "release-notes"
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          "url": "https://metacpan.org/release/OALDERS/HTTP-Date-6.08/changes"
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          "lang": "en",
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        }
      ],
      "source": {
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      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-09T00:00:00.000Z",
          "value": "Version 6.08 released with the fix."
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      "title": "HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtracking in parse_date",
      "x_generator": {
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  "cveMetadata": {
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    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.