Bug 2480997 (CVE-2026-48829)

Summary: CVE-2026-48829 libgsasl: Denial of Service via NULL pointer dereference in DIGEST-MD5
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in GNU SASL. This vulnerability, a NULL pointer dereference in the DIGEST-MD5 mechanism, can be triggered by a remote attacker providing a specially crafted token without an accompanying equals sign. Successful exploitation could lead to a Denial of Service (DoS) condition, making the service unavailable.
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Bug Depends On: 2507564, 2507565    
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Description OSIDB Bzimport 2026-05-24 04:01:22 UTC
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.