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TI-2011-01008 Aliases CVE-2011-1156GHSA-6h52-4vmh-8x4f

feedparser.py in Universal Feed Parser (aka feedparser or python-feedparser) before 5.0.1…

Priority LOW 29CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-399 and the CVSS impact.

Summary

feedparser.py in Universal Feed Parser (aka feedparser or python-feedparser) before 5.0.1 allows remote attackers to cause a denial of service (application crash) via a malformed DOCTYPE declaration.

Why it matters now

EPSS 0.03261 88th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix Fixed feedparser (PyPI): 5.0.1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—feedparser (PyPI)4.1 to before 5.0.15.0.1Patch availableGHSA-6h52-4vmh-8x4f
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • feedparser (PyPI) Vendor— Affected 4.1 to before 5.0.1 Fixed in 5.0.1 Patch available GHSA-6h52-4vmh-8x4f

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:a:mark_pilgrim:feedparser:*:*:*:*:*:*:*:*up to 5.0VulnerableMark Pilgrim
cpe:2.3:a:mark_pilgrim:feedparser:3.0:*:*:*:*:*:*:*3.0VulnerableMark Pilgrim
cpe:2.3:a:mark_pilgrim:feedparser:3.0.1:*:*:*:*:*:*:*3.0.1VulnerableMark Pilgrim
cpe:2.3:a:mark_pilgrim:feedparser:3.1:*:*:*:*:*:*:*3.1VulnerableMark Pilgrim
cpe:2.3:a:mark_pilgrim:feedparser:3.2:*:*:*:*:*:*:*3.2VulnerableMark Pilgrim
cpe:2.3:a:mark_pilgrim:feedparser:3.3:*:*:*:*:*:*:*3.3VulnerableMark Pilgrim
cpe:2.3:a:mark_pilgrim:feedparser:4.0:*:*:*:*:*:*:*4.0VulnerableMark Pilgrim
cpe:2.3:a:mark_pilgrim:feedparser:4.0.1:*:*:*:*:*:*:*4.0.1VulnerableMark Pilgrim
cpe:2.3:a:mark_pilgrim:feedparser:4.0.2:*:*:*:*:*:*:*4.0.2VulnerableMark Pilgrim
cpe:2.3:a:mark_pilgrim:feedparser:4.1:*:*:*:*:*:*:*4.1VulnerableMark Pilgrim
  • cpe:2.3:a:mark_pilgrim:feedparser:*:*:*:*:*:*:*:* Versions up to 5.0 Vulnerable ·Mark Pilgrim
  • cpe:2.3:a:mark_pilgrim:feedparser:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Mark Pilgrim
  • cpe:2.3:a:mark_pilgrim:feedparser:3.0.1:*:*:*:*:*:*:* Versions 3.0.1 Vulnerable ·Mark Pilgrim
  • cpe:2.3:a:mark_pilgrim:feedparser:3.1:*:*:*:*:*:*:* Versions 3.1 Vulnerable ·Mark Pilgrim
  • cpe:2.3:a:mark_pilgrim:feedparser:3.2:*:*:*:*:*:*:* Versions 3.2 Vulnerable ·Mark Pilgrim
  • cpe:2.3:a:mark_pilgrim:feedparser:3.3:*:*:*:*:*:*:* Versions 3.3 Vulnerable ·Mark Pilgrim
  • cpe:2.3:a:mark_pilgrim:feedparser:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Mark Pilgrim
  • cpe:2.3:a:mark_pilgrim:feedparser:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·Mark Pilgrim
  • cpe:2.3:a:mark_pilgrim:feedparser:4.0.2:*:*:*:*:*:*:* Versions 4.0.2 Vulnerable ·Mark Pilgrim
  • cpe:2.3:a:mark_pilgrim:feedparser:4.1:*:*:*:*:*:*:* Versions 4.1 Vulnerable ·Mark Pilgrim

Remediation

  • Fix · GHSA-6h52-4vmh-8x4f feedparser (PyPI) Fixed in 5.0.1 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-1156
  2. 2026-10-03 Alias added: GHSA-6h52-4vmh-8x4f

References

Exploit 3

Patch 1

Advisory 3

Other 6

  • TI-2012-02535 Universal Feed Parser (aka feedparser or python-feedparser) before 5.1.2 allows remote… CVSS 2.0MEDIUM 5.0
  • TI-2009-04819 Cross-site scripting (XSS) vulnerability in feedparser.py in Universal Feed Parser (aka… CVSS 2.0MEDIUM 4.3
  • TI-2011-01010 Cross-site scripting (XSS) vulnerability in feedparser.py in Universal Feed Parser (aka… CVSS 2.0MEDIUM 4.3
  • TI-2011-01009 Cross-site scripting (XSS) vulnerability in feedparser.py in Universal Feed Parser (aka… CVSS 2.0MEDIUM 4.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences