CVE-2026-8925
CVE-2026-8925 is a critical-severity vulnerability in Haxx Curl with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-415.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-415
- Affected product: Haxx Curl
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-8925?
- 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.
- How severe is CVE-2026-8925?
- CVE-2026-8925 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-8925 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-8925?
- CVE-2026-8925 affects Haxx Curl. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-8925?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2026-8925 published?
- CVE-2026-8925 was published on 2026-07-03 and last updated on 2026-07-07.
References
- https://curl.se/docs/CVE-2026-8925.html
- https://curl.se/docs/CVE-2026-8925.json
- https://hackerone.com/reports/3735193
Affected products (1)
- cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
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