UpHeron
All vulnerabilities

Servers and applications

CVE-2026-9080

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.

Severity
High 7.3
Published
3 Jul 2026
Last changed
15 Sept 2026
Added to UpHeron
21 Oct 2026
Fixed in
8.21.0
Sources
NVD

Affected software

SoftwareAffected versions
curlServers and applications · cpe:a:haxx:curl
  • From 8.13.0 before 8.21.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2026-9080
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-9080