CVE-2026-9080
Last modified
CVE-2026-9080 is a high-severity vulnerability rated 7.3/10 on the CVSS scale. Calling `curl_easy_pause()` within the event-based `CURLMOPT_SOCKETFUNCTION` callback triggers a use-after-free vulnerability, where libcurl attempts to store a flag using a dangling struct pointer immediately after that pointer's memory has been freed.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.
Description
Calling `curl_easy_pause()` within the event-based `CURLMOPT_SOCKETFUNCTION` callback triggers a use-after-free vulnerability, where libcurl attempts to store a flag using a dangling struct pointer immediately after that pointer's memory has been freed.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Haxx | Curl | >= 8.13.0, < 8.21.0 |
References
- https://curl.se/docs/CVE-2026-9080.htmlPatch, Vendor Advisory
- https://curl.se/docs/CVE-2026-9080.jsonVendor Advisory
- https://hackerone.com/reports/3749204Exploit, Issue Tracking, Third Party Advisory
- https://hackerone.com/reports/3749204Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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