CVE-2026-54428
Apache HttpComponents Core: HPackDecoder Unlimited Header List Size Before SETTINGS ACK
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.
INFO
Published Date :
July 1, 2026, 5:03 p.m.
Last Modified :
July 1, 2026, 5:36 p.m.
Remotely Exploit :
No
Source :
apache
Affected Products
The following products are affected by CVE-2026-54428
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update Apache HttpComponents Core to version 5.4.3 or later.
- Update Apache HttpComponents Core to version 5.5 or later.
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The following list is the news that have been mention
CVE-2026-54428 vulnerability anywhere in the article.