httpcomponents-core5: Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache HttpComponents Core (5.4.2...
CVE-2026-54428 is fixed in httpcomponents-core5 on 1 platform by DEBIAN-CVE-2026-54428 (version 5.4.3-1), released July 1, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| httpcomponents-core5 · Debian 14 | 5.4.3-1 | DEBIAN-CVE-2026-54428 | Jul 1, 2026 |
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