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Fencer Vulns
high 7.5

CVE-2026-48829 json

In GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and servers, via a known token with no accompany…

published 2026-05-24 5 mo ago modified 2026-07-23 3 mo ago also EUVD-2026-31562

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits
0
none known

Summary

In GNU SASL before 2.2.3, DIGEST-MD5 has a NULL pointer dereference affecting both clients and servers, via a known token with no accompanying = character. This occurs in lib/digest-md5/getsubopt.c.

Patch / fix

  • GNU GNU SASL 2.2.3
  • gsasl Debian 12 2.2.0-1+deb12u1
  • gsasl Debian 13 2.2.2-1.1+deb13u1
  • gsasl Debian 14 2.2.3-1

debian advisories DEBIAN-CVE-2026-48829

  • gsasl Ubuntu 24.04 LTS 2.2.1-1willsync1ubuntu0.1
  • gsasl Ubuntu 25.10 2.2.2-2ubuntu1.1
  • gsasl Ubuntu 26.04 LTS 2.2.2-4ubuntu1.1

ubuntu advisories UBUNTU-CVE-2026-48829

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • gsasl SLES for SAP applications 16.0, SLES 16.0 2.2.1-160000.3.1

suse advisories SUSE-SU-2026:22313-1

  • gsasl openSUSE Leap 16.0 2.2.1-160000.3.1
  • gsasl openSUSE Tumbleweed 2.2.3-1.1

opensuse advisories openSUSE-SU-2026:21004-1openSUSE-SU-2026:10891-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-48829 updated cvss 7.5

libgsasl: Denial of Service via NULL pointer dereference in DIGEST-MD5

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
5 mo ago

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • GNU GNU SASL

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.