CVE-2026-5419
Gnutls: gnutls: information disclosure via timing side-channel in pkcs#7 padding removal
Description
A flaw was found in gnutls. The PKCS#7 padding check, performed during decryption, was not constant-time. This timing side-channel could allow a remote attacker to potentially leak sensitive information about the padding bytes through observable timing differences. This vulnerability is a form of information disclosure.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:HAttack ComplexityHigh
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:LConfidentialityLow
I:NIntegrityNone
A:NAvailabilityNone
Weaknesses
Affected Products
Red Hat
commercial·US
and 4 more affected products View all →
Exploitability
No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
References
https://access.redhat.com/errata/RHSA-2026:20612
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:20613
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:26319
access.redhat.com
and 7 more references View all →
News mentions
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