amphp/http will collect CONTINUATION frames in an unbounded buffer and will not check a…
Priority HIGH 82Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub.
Summary
amphp/http will collect CONTINUATION frames in an unbounded buffer and will not check a limit until it has received the set END_HEADERS flag, resulting in an OOM crash.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.80264 99th percentileScored 2026-11-07
Fix Fixed amphp/http (Packagist): 2.1.1, 1.7.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| AMPHP | amphp/http-client | v4.0.0-rc10 – 4.0.0 | — | No fix listed | CNA |
| AMPHP | amphp/http | 2.0.0-beta.1 – 2.1.0 | — | No fix listed | CNA |
| AMPHP | amphp/http | v1.6.0-rc1 – 1.7.2 | — | No fix listed | CNA |
| — | amphp/http (Packagist) | 2.0.0 to before 2.1.1 | 2.1.1 | Patch available | GHSA-qjfw-cvjf-f4fm |
| — | amphp/http (Packagist) | before 1.7.3 | 1.7.3 | Patch available | GHSA-qjfw-cvjf-f4fm |
| — | amphp/http-client (Packagist) | 4.0.0-rc10 – 4.0.0 | — | No fix listed | GHSA-qjfw-cvjf-f4fm |
- amphp/http-client VendorAMPHP Affected v4.0.0-rc10 – 4.0.0 Fixed in — No fix listed CNA
- amphp/http VendorAMPHP Affected 2.0.0-beta.1 – 2.1.0 Fixed in — No fix listed CNA
- amphp/http VendorAMPHP Affected v1.6.0-rc1 – 1.7.2 Fixed in — No fix listed CNA
- amphp/http (Packagist) Vendor— Affected 2.0.0 to before 2.1.1 Fixed in 2.1.1 Patch available GHSA-qjfw-cvjf-f4fm
- amphp/http (Packagist) Vendor— Affected before 1.7.3 Fixed in 1.7.3 Patch available GHSA-qjfw-cvjf-f4fm
- amphp/http-client (Packagist) Vendor— Affected 4.0.0-rc10 – 4.0.0 Fixed in — No fix listed GHSA-qjfw-cvjf-f4fm
Remediation
- Fix · GHSA-qjfw-cvjf-f4fm amphp/http (Packagist) Fixed in 2.1.1 Advisory →
- Fix · GHSA-qjfw-cvjf-f4fm amphp/http (Packagist) Fixed in 1.7.3 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2024-2653
- 2026-10-03 Alias added: GHSA-qjfw-cvjf-f4fm
References
Other 9
- https://github.com/amphp/http/security/advisories/GHSA-qjfw-cvjf-f4fm
- https://github.com/amphp/http-client/security/advisories/GHSA-w8gf-g2vq-j2f4
- http://www.openwall.com/lists/oss-security/2024/04/03/16
- https://github.com/amphp/http/commit/3a33e68a3b53f7279217238e89748cf0cb30b8a6
- https://github.com/amphp/http/commit/881cc33da236fbcd0cb0cf6c2bfc7efcf80ede76
- https://github.com/FriendsOfPHP/security-advisories/blob/master/amphp/http-client/CVE-2024-2653.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/amphp/http/CVE-2024-2653.yaml
- https://github.com/amphp/http
- https://www.kb.cert.org/vuls/id/421644
Sources
- CVE-2024-2653 · CVE Program
- CVE-2024-2653 · NVD
- FIRST EPSS
- GHSA-qjfw-cvjf-f4fm · GitHub Advisory Database · CC BY 4.0
- CVE-2024-2653 · 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