CVE-2026-8925

CRITICAL 9.8

SASL double-free

CVSS Score

9.8

EPSS Score

0.2%

EPSS Percentile

16th

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.

Vendor	curl
Product	curl
Published	Jul 3, 2026
Last Updated	Jul 6, 2026

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Affected Versions

curl / curl

8.20.0 ≤ 8.20.0 8.19.0 ≤ 8.19.0 8.18.0 ≤ 8.18.0 8.17.0 ≤ 8.17.0 8.16.0 ≤ 8.16.0 8.15.0 ≤ 8.15.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

curl.se: https://curl.se/docs/CVE-2026-8925.json curl.se: https://curl.se/docs/CVE-2026-8925.html hackerone.com: https://hackerone.com/reports/3735193

Credits

Joshua Rogers (Aisle Research) Viktor Szakats