SimplePie Local File Read via file:// Redirect
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Attack requirements
- Present
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-73 and the CVSS impact.
Summary
SimplePie through 1.9.0 contains a local file read vulnerability (CWE-73) that lets a malicious feed server read server files. The server returns a Location header or feed link pointing to a file:// path, and file_get_contents() reads any file the web server process can access. The CVSS 4.0 base score is 8.2 (HIGH). CISA's SSVC rates exploitation as proof of concept, not automatable, with partial technical impact, and CISA has not added it to KEV.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
SimplePie through 1.9.0 contains a local file read vulnerability that allows malicious feed servers to read server files by supplying file:// URLs in redirects or autodiscovery links. Attackers can return a Location header or feed link pointing to a file:// path, causing file_get_contents() to read files accessible to the web server process.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version is listed for SimplePie. Red Hat lists one product as not affected. Until a fix is released, restrict which feed servers SimplePie fetches from and block file:// redirects.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Vendor assessments
Timeline
- 2026-10-16 Threatist record created from CVE-2026-111234
- 2026-10-16 Priority changed: MEDIUM → LOW
- 2026-10-16 Affected versions changed · Red Hat
- 2026-10-16 CVSS score added · Red Hat
- 2026-10-16 CISA SSVC decision points changed
- 2026-10-16 Priority changed: LOW → HIGH
References
Other 5
- https://github.com/simplepie/simplepie/issues/968
- https://github.com/simplepie/simplepie/blob/76cccb1b2c5dcaf44f304c925ab30c0f48643992/src/File.php#L160-L176
- https://github.com/simplepie/simplepie/blob/76cccb1b2c5dcaf44f304c925ab30c0f48643992/src/File.php#L289-L293
- https://github.com/simplepie/simplepie/blob/76cccb1b2c5dcaf44f304c925ab30c0f48643992/src/HTTP/Psr18Client.php#L75-L157
- https://github.com/simplepie/simplepie
Sources
- CVE-2026-111234 · CVE Program
- CVE-2026-111234 · NVD
- FIRST EPSS
- CVE-2026-111234 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences