Improper Handling of Highly Compressed Data (Data Amplification) The advisory has been revoked - it doesn't affect any version of package candlepin-selinux::satellite:el8 (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-CANDLEPINSELINUX-18338294
- published28 Jul 2026
- disclosed20 Jul 2026
Introduced: 20 Jul 2026
CVE-2026-55833 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream candlepin-selinux::satellite:el8 package and not the candlepin-selinux::satellite:el8 package as distributed by RHEL.
Netty is a network application framework for development of protocol servers and clients. Prior to 4.1.136.Final and 4.2.16.Final, Netty SPDY header decoding continues inflating zlib-compressed header blocks after the raw header parser has exceeded maxHeaderSize and marked the frame truncated in SpdyFrameCodec, allowing a remote peer to send a small compressed HEADERS block that expands into much larger raw header data and causes compression-amplified CPU and allocation churn. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2503101
- https://access.redhat.com/security/cve/CVE-2026-55833
- https://access.redhat.com/errata/RHSA-2026:70230
- https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b
- https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6
- https://github.com/netty/netty/releases/tag/netty-4.1.136.Final
- https://github.com/netty/netty/releases/tag/netty-4.2.16.Final
- https://github.com/netty/netty/security/advisories/GHSA-mvh2-crg5-v77c