CVE-2025-22871GO-2025-3563BIT-GOLANG-2025-22871GHSA-G9PC-8G42-G6VQ
Request smuggling due to acceptance of invalid chunked data in net/http
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 1.23.8, 1.24.2, 2025.1.0
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: yes
- Technical impact: total
Summary
The net/http package improperly accepts a bare LF as a line terminator in chunked data chunk-size lines. This can permit request smuggling if a net/http server is used in conjunction with a server that incorrectly accepts a bare LF as part of a chunk-ext.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: total
- Record last updated
Affected versions
- net/http/internal
fixed in 1.23.8; From 1.24.0-0 · fixed in 1.24.2
- stdlibGo
fixed in 1.23.8; From 1.24.0-0 · fixed in 1.24.2
- spiral/roadrunnerPackagist
fixed in 2025.1.0