CVE-2026-110926
A flaw was found in OpenSSH.
Published Oct 15, 2026 · updated Oct 15, 2026 · Red Hat Red Hat Enterprise Linux 10
A flaw was found in OpenSSH. When compression is negotiated, channels on the same connection share one LZ77 dictionary. A peer who can write on one channel can recover plaintext from another channel by chosen-plaintext lengths.
Code
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No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 15, 2026 · NIST NVD
Detected
A flaw was found in OpenSSH. When compression is negotiated, channels on the same connection share one LZ77 dictionary. A peer who can write on one channel can recover plaintext from another channel by chosen-plaintext lengths.
Oct 15, 2026 · NIST NVD
Updated
A flaw was found in OpenSSH. When compression is negotiated, channels on the same connection share one LZ77 dictionary. A peer who can write on one channel can recover plaintext from another channel by chosen-plaintext lengths.
Oct 15, 2026 · NIST NVD
Updated
A flaw was found in OpenSSH. When compression is negotiated, channels on the same connection share one LZ77 dictionary. A peer who can write on one channel can recover plaintext from another channel by chosen-plaintext lengths.
Affected
- vendor Red Hat Red Hat Enterprise Linux 10version unspecified
- vendor Red Hat Red Hat Enterprise Linux 6version unspecified
- vendor Red Hat Red Hat Enterprise Linux 7version unspecified
- vendor Red Hat Red Hat Enterprise Linux 8version unspecified
- vendor Red Hat Red Hat Enterprise Linux 9version unspecified
- vendor Red Hat Red Hat Hardened Imagesversion unspecified
- vendor Red Hat Red Hat OpenShift Container Platform 4version unspecified
Sources
- CIRCL Vulnerability LookupVulnerability recordCVE-2026-110926
A flaw was found in OpenSSH. When compression is negotiated, channels on the same connection share one LZ77 dictionary. A peer who can write on one channel can recover plaintext from another channel by chosen-plaintext lengths.
vulnerability.circl.lu - CVE.orgVulnerability recordCVE-2026-110926
A flaw was found in OpenSSH. When compression is negotiated, channels on the same connection share one LZ77 dictionary. A peer who can write on one channel can recover plaintext from another channel by chosen-plaintext lengths.
cve.org - FIRST EPSSExploitation probabilityCVE-2026-110926
30-day exploitation probability 0.3%
first.org - NIST NVDVulnerability recordCVE-2026-110926
A flaw was found in OpenSSH. When compression is negotiated, channels on the same connection share one LZ77 dictionary. A peer who can write on one channel can recover plaintext from another channel by chosen-plaintext lengths.
nvd.nist.gov