cURL doublefree via GSASL context cleanup bug
CVE-2026-8925 Published on July 3, 2026
SASL double-free
The curl logic that works with SASL authentication could end up cleaning up
the GSASL context *twice* without clearing the pointer in between, making it
`free()` the same pointer twice.
Vulnerability Analysis
CVE-2026-8925 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. An automatable proof of concept (POC) exploit exists. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Products Associated with CVE-2026-8925
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Affected Versions
curl:- Version 8.20.0, <= 8.20.0 is affected.
- Version 8.19.0, <= 8.19.0 is affected.
- Version 8.18.0, <= 8.18.0 is affected.
- Version 8.17.0, <= 8.17.0 is affected.
- Version 8.16.0, <= 8.16.0 is affected.
- Version 8.15.0, <= 8.15.0 is affected.