apache/httpcomponents-core · Security
Apache HttpComponents Core: HPackDecoder Unlimited Header List Size Before SETTINGS ACK
- GHSA ID
- GHSA-v3jc-474w-2wm6
- CVE ID
- CVE-2026-54428
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core (5.4.2 and earlier, 5.5-beta1 and earlier) allows an remote attacker to cause a denial of service through memory exhaustion by sending oversized compressed header blocks before the HTTP/2 SETTINGS acknowledgement causes the configured header list size limit to be applied.
CWEs
- CWE-400 · Uncontrolled Resource Consumption
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-54428 ↗
- https://lists.apache.org/thread/5zjp8vczvxq19pw2rvhs21q446bhl0sd ↗
- http://www.openwall.com/lists/oss-security/2026/07/01/3 ↗
- https://github.com/apache/httpcomponents-core/commit/1ea1239bbbe3442a8382a87279c0a8119a7e358e ↗
- https://github.com/apache/httpcomponents-core/commit/cc30ee058a7b10cbf4ad3dd6270ab6d1f6a74c49 ↗
- https://github.com/advisories/GHSA-v3jc-474w-2wm6 ↗