Medium severity5.9NVD Advisory· Published Jul 21, 2026· Updated Sep 4, 2026
CVE-2026-59847
CVE-2026-59847
Description
A flaw was found in libssh. Incorrect AES-GCM finalization checks in builds using the OpenSSL backend can effectively remove integrity protection, allowing an in-path attacker to modify plaintext on the wire without detection.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
17- osv-coords11 versionspkg:rpm/opensuse/libssh&distro=openSUSE%20Leap%2016.0pkg:rpm/almalinux/libsshpkg:rpm/almalinux/libssh-develpkg:apk/wolfi/libssh-devpkg:apk/wolfi/libssh2pkg:rpm/almalinux/libssh-configpkg:rpm/opensuse/libssh&distro=openSUSE%20Tumbleweedpkg:apk/chainguard/libsshpkg:apk/chainguard/libssh-devpkg:apk/chainguard/libssh2pkg:apk/wolfi/libssh
< 0.11.5-160000.1.1+ 10 more
- (no CPE)range: < 0.11.5-160000.1.1
- (no CPE)range: < 0.12.0-3.el10_2
- (no CPE)range: < 0.12.0-3.el10_2
- (no CPE)range: < 0.12.1-r0
- (no CPE)range: < 0
- (no CPE)range: < 0.12.0-3.el10_2
- (no CPE)range: < 0.11.5-1.2
- (no CPE)range: < 0.12.1-r0
- (no CPE)range: < 0.12.1-r0
- (no CPE)range: < 0
- (no CPE)range: < 0.12.1-r0
- cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
6- access.redhat.com/errata/RHSA-2026:42922nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2026:55855nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2026:62217nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2026:62218nvdThird Party Advisory
- access.redhat.com/security/cve/CVE-2026-59847nvdThird Party Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
News mentions
1- Libssh: Eleven Vulnerabilities Disclosed Together, Including Auth Bypass and DoSVypr Intelligence · Jul 21, 2026