VulnerabilityModified
CVE-2021-29476
Requests mishandles deserialization in FilteredIterator.
CRITICAL 9.8EPSS 2.14%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Requests is a HTTP library written in PHP. Requests mishandles deserialization in FilteredIterator. The issue has been patched and users of `Requests` 1.6.0, 1.6.1 and 1.7.0 should update to version 1.8.0.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.14% probability · 82th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- wordpress/requests
- Source
- security-advisories@github.com
EPSS 2.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/WordPress/Requests/security/advisories/GHSA-52qp-jpq7-6c54Third Party Advisory
- https://github.com/rmccue/Requests/pull/421Patch, Third Party Advisory
- https://github.com/WordPress/Requests/security/advisories/GHSA-52qp-jpq7-6c54Third Party Advisory
- https://github.com/rmccue/Requests/pull/421Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.