CVE-2021-29476
Publication date 27 April 2021
Last updated 26 August 2025
Ubuntu priority
Cvss 3 Severity Score
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| wordpress | 26.04 LTS resolute |
Not affected
|
| 25.10 questing |
Not affected
|
|
| 24.04 LTS noble |
Not affected
|
|
| 22.04 LTS jammy |
Not affected
|
|
| 20.04 LTS focal | Ignored end of standard support, was needs-triage | |
| 18.04 LTS bionic | Ignored end of standard support, was needs-triage | |
| 16.04 LTS xenial | Ignored end of standard support, was needs-triage | |
| 14.04 LTS trusty | Not in release |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
Other references
- https://github.com/WordPress/Requests/security/advisories/GHSA-52qp-jpq7-6c54
- https://github.com/rmccue/Requests/pull/421
- https://wordpress.org/news/2020/10/wordpress-5-5-2-security-and-maintenance-release/
- https://github.com/WordPress/wordpress-develop/commit/add6bedf3a53b647d0ebda2970057912d3cd79d3
- https://www.cve.org/CVERecord?id=CVE-2021-29476