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Debian libgcrypt Denial of Service Security Advisory DSA-6294-1

debian
Calendar Grey May 22, 2026
Debian Logo
An advisory for Debian DSA-6294-1 regarding a denial of service issue with Libgcrypt ECDH encryption implementation.
It was discovered that an incorrect implementation of ECDH encryption (with NIST, Brainpool, X448, or X25519 curves) within Libgcrypt could result in denial of service
Topics%20covered

Topics Covered

security advisory denial of service encryption debian Libgcrypt ecdh

Summary

For the oldstable distribution (bookworm), this problem has been fixed
in version 1.10.1-3+deb12u1.

For the stable distribution (trixie), this problem has been fixed in
version 1.11.0-7+deb13u1.

We recommend that you upgrade your libgcrypt20 packages.

For the detailed security status of libgcrypt20 please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/libgcrypt20

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/



Severity
important
Lowest
Low
Medium
High
Critical

Package: libgcrypt20
CVE ID: CVE-2026-41989

Topics%20covered

Topics Covered

security advisory denial of service encryption debian Libgcrypt ecdh

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