Vulnerability-Lookup

SUSE-SU-2026:22859-1

Vulnerability from csaf_suse - Published: 2026-07-22 18:56 - Updated: 2026-09-16 20:06

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 via polynomial regex backtracking in parse_date (bsc#1271705).

Patchnames: SUSE-SLES-16.0-1338

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 2 products

Product	Identifier	Version	Remediation
Unresolved product id: SUSE Linux Enterprise Server 16.0:perl-HTTP-Date-6.06-160000.3.1.noarch		—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP applications 16.0:perl-HTTP-Date-6.06-160000.3.1.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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        "title": "Description of the patch"
      },
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  "vulnerabilities": [
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        }
      ],
      "notes": [
        {
          "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.",
          "title": "CVE description"
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          "product_ids": [
            "SUSE Linux Enterprise Server 16.0:perl-HTTP-Date-6.06-160000.3.1.noarch",
            "SUSE Linux Enterprise Server for SAP applications 16.0:perl-HTTP-Date-6.06-160000.3.1.noarch"
          ]
        }
      ],
      "scores": [
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          "cvss_v3": {
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            "baseSeverity": "MEDIUM",
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          ]
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          "date": "2026-07-22T18:56:27Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2026-14741"
    }
  ]
}

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 CNA under the redhat root

CNA scorecard C 63/100 over 292 records in the last 180 days details

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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-14741",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-12T18:47:05.416355Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-12T18:47:08.460Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2026-07-17T17:25:13.175Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/07/17/10"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "HTTP-Date",
          "product": "HTTP::Date",
          "programFiles": [
            "lib/HTTP/Date.pm"
          ],
          "programRoutines": [
            {
              "name": "HTTP::Date::parse_date"
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            {
              "name": "HTTP::Date::str2time"
            }
          ],
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          "vendor": "OALDERS",
          "versions": [
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              "lessThan": "6.08",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "CWE-1333 Inefficient Regular Expression Complexity",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-17T15:20:07.201Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
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      "references": [
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          "tags": [
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          "url": "https://github.com/libwww-perl/HTTP-Date/commit/78c20952cdfbf11e03cf1199ad70f13298a84c5c.patch"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/libwww-perl/HTTP-Date/pull/33"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/OALDERS/HTTP-Date-6.08/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to HTTP::Date 6.08 or later, which rejects input longer than 64 characters before the date-parsing regexes run."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-09T00:00:00.000Z",
          "value": "Version 6.08 released with the fix."
        }
      ],
      "title": "HTTP::Date versions before 6.08 for Perl allow CPU exhaustion via polynomial regex backtracking in parse_date",
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    }
  },
  "cveMetadata": {
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    "assignerShortName": "CPANSec",
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    "dateReserved": "2026-07-04T11:57:33.964Z",
    "dateUpdated": "2026-08-12T18:47:08.460Z",
    "state": "PUBLISHED"
  },
  "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.

Vulnerability timeline

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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

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