HIGHMaven →
Apache HttpComponents Core: HPackDecoder Unlimited Header List Size Before SETTINGS ACK
Apache HttpComponents Core: HPackDecoder Unlimited Header List Size Before SETTINGS ACK
Affected packages
- org.apache.httpcomponents.core5:httpcore5-h2— before 5.4.3
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://nvd.nist.gov/vuln/detail/CVE-2026-54428
- https://github.com/apache/httpcomponents-core/commit/1ea1239bbbe3442a8382a87279c0a8119a7e358e
- https://github.com/apache/httpcomponents-core/commit/cc30ee058a7b10cbf4ad3dd6270ab6d1f6a74c49
- https://github.com/apache/httpcomponents-core
- https://lists.apache.org/thread/5zjp8vczvxq19pw2rvhs21q446bhl0sd
- http://www.openwall.com/lists/oss-security/2026/07/01/3
Structured record: https://osv.dev/vulnerability/GHSA-v3jc-474w-2wm6
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