A double free vulnerability exists in libcurl <8.0.0 when sharing HSTS data between separate "handles". This sharing was introduced without considerations for do this sharing across separate threads but there was no indication of this fact in the documentation. Due to missing mutexes or thread locks, two threads sharing the same HSTS data could end up doing a double-free or use-after-free.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 5.9 · haxx, netapp, broadcomNVD modified 2026-10-14 23:17
Affected (CPE criteria) 11
cpe:2.3:a:haxx:libcurl:7.88.0:*:*:*:*:*:*:*cpe:2.3:a:haxx:libcurl:7.88.1:*:*:*:*:*:*:*cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*cpe:2.3:a:netapp:clustered_data_ontap:9.0:-:*:*:*:*:*:*cpe:2.3:o:broadcom:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:*
References 8
- https://hackerone.com/reports/1897203 Exploit, Third Party Advisory
- https://security.gentoo.org/glsa/202310-12 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230420-0010/ Third Party Advisory
- https://hackerone.com/reports/1897203 Exploit, Third Party Advisory
- https://security.gentoo.org/glsa/202310-12 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230420-0010/ Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-943925.html