by Kastro
Paper/Archive/CVE-2026-8925

CVE-2026-8925

curl curl — SASL double-free

EPSS 1%public exploitCVSS 9.8
critical.is priorityof 100
52
CVSS 9.8 (ADP)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 65.1.651 × 2013.0Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
curl8.15.0 – < 8.16.18.16.1CNA
curl8.17.0 – < 8.20.18.20.1CNA
curlab650379a8c25ca952f651476d25b4cdd77bb3fc – < 3da249e1f0716c06644ed3522a37a8bf818080123da249e1f0716c06644ed3522a37a8bf81808012CNA
curl8.20.0–CNA
curl8.19.0–CNA
curl8.18.0–CNA
curl8.17.0–CNA
curl8.16.0–CNA
curl8.15.0–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

refcurl.se/docs/CVE-2026-8925.jsonrefcurl.se/docs/CVE-2026-8925.htmlexploithackerone.com/reports/3735193