CVE-2026-48829: CWE-476 NULL Pointer Dereference in GNU GNU SASL
CVE-2026-48829 is a high-severity vulnerability in GNU SASL versions before 2. 2. 3, where the DIGEST-MD5 mechanism contains a NULL pointer dereference. This flaw affects both clients and servers and occurs when processing a known token that lacks an accompanying '=' character in the getsubopt. c source file. The vulnerability can cause a denial of service due to application crashes. No official patch or remediation level has been confirmed yet.
AI Analysis
Technical Summary
GNU SASL before version 2.2.3 contains a NULL pointer dereference vulnerability in the DIGEST-MD5 authentication mechanism. The issue arises in the lib/digest-md5/getsubopt.c file when parsing a token without an '=' character, leading to a NULL pointer dereference that affects both client and server implementations. This vulnerability is tracked as CWE-476 and has a CVSS 3.1 base score of 7.5, indicating a high impact primarily due to availability disruption. No known exploits are reported in the wild, and no vendor advisory or patch information is currently available.
Potential Impact
The vulnerability can cause a denial of service by crashing GNU SASL clients or servers using the DIGEST-MD5 mechanism when processing malformed tokens. There is no indication of confidentiality or integrity impact. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider disabling the DIGEST-MD5 mechanism in GNU SASL if feasible to mitigate potential denial of service risks.
CVE-2026-48829: CWE-476 NULL Pointer Dereference in GNU GNU SASL
Description
CVE-2026-48829 is a high-severity vulnerability in GNU SASL versions before 2. 2. 3, where the DIGEST-MD5 mechanism contains a NULL pointer dereference. This flaw affects both clients and servers and occurs when processing a known token that lacks an accompanying '=' character in the getsubopt. c source file. The vulnerability can cause a denial of service due to application crashes. No official patch or remediation level has been confirmed yet.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
GNU SASL before version 2.2.3 contains a NULL pointer dereference vulnerability in the DIGEST-MD5 authentication mechanism. The issue arises in the lib/digest-md5/getsubopt.c file when parsing a token without an '=' character, leading to a NULL pointer dereference that affects both client and server implementations. This vulnerability is tracked as CWE-476 and has a CVSS 3.1 base score of 7.5, indicating a high impact primarily due to availability disruption. No known exploits are reported in the wild, and no vendor advisory or patch information is currently available.
Potential Impact
The vulnerability can cause a denial of service by crashing GNU SASL clients or servers using the DIGEST-MD5 mechanism when processing malformed tokens. There is no indication of confidentiality or integrity impact. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider disabling the DIGEST-MD5 mechanism in GNU SASL if feasible to mitigate potential denial of service risks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-05-24T02:22:03.024Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a12711c09f6977edbec7b36
Added to database: 5/24/2026, 3:31:40 AM
Last enriched: 5/24/2026, 3:46:37 AM
Last updated: 5/24/2026, 4:32:21 AM
Views: 5
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