01 Record

CVE-2026-48829

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.

HighPUBLISHEDCNA: mitre

CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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02 Description

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.

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.45% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 39.2% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Deferred. NVD last modified this record on 2026-07-23.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-05-24 02:22Z5 MO AGO

Last updated

2026-06-05 16:00Z4 MO AGO

Reserved

2026-05-24

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

c612cd99af15d7f264c8216c9a1d8e2f3d943fb074441db0bb925095dd0f2aa4

05 Affected products

VendorProductVersionsPlatforms

GNUGNU SASL0 to < 2.2.3—

06 References

lists.gnu.orghttps://lists.gnu.org/archive/html/help-gsasl/2026-05/msg00002.html
codeberg.orghttps://codeberg.org/gsasl/gsasl/commit/da9b5ae2962b014879e4a406c3b38f25aa70e97a
lists.debian.orghttps://lists.debian.org/debian-security-announce/2026/msg00182.html
lists.gnu.orghttps://lists.gnu.org/archive/html/help-gsasl/2026-05/msg00000.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2026/06/msg00007.html

07 Fixed in

Debian 12

gsasl
Fixed in 2.2.0-1+deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

gsasl
Fixed in 2.2.2-1.1+deb13u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

gsasl
Fixed in 2.2.3-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.