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.
References
https://curl.se/docs/CVE-2026-9080.html
PatchVendor Advisory
https://curl.se/docs/CVE-2026-9080.json
Vendor Advisory
https://hackerone.com/reports/3749204
ExploitIssue TrackingThird Party Advisory
https://hackerone.com/reports/3749204
ExploitIssue TrackingThird Party Advisory
CVSS impact metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.3 · High
Information
Source identifier
2499f714-1537-4658-8207-48ae4bb9eae9
Vulnerability status
Modified
Published
2026-07-03T07:16:25.713Z
3 months agoLast modified
2026-09-15T07:16:34.767Z
3 weeks ago