CVE-2025-14819Medium· 5.3▾ SunlitWhen doing TLS related transfers with reused easy or multi handles and altering the `CURLSSLOPT_NO_PARTIALCHAIN` option, libcurl could accidentally reuse a CA store cached in memory for which the partial chain option was reversed. Contra…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 29.2 · likelihood 0.2 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.7%
0.7% → 0.8%
Last analysed / modified upstream
When doing TLS related transfers with reused easy or multi handles and
altering the CURLSSLOPT_NO_PARTIALCHAIN option, libcurl could accidentally
reuse a CA store cached in memory for which the partial chain option was
reversed. Contrary to the user's wishes and expectations. This could make
libcurl find and accept a trust chain that it otherwise would not.
curl >= 7.87.0, < 8.18.0Upgrade past the affected range:
curl 8.18.0Connected by shared product, vendor, weakness, or advisory.
CVE-2024-8096Medium· 6.5When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it might fail to detect some OCSP problems and instead wrongly consider the respon…
CVE-2024-2379Medium· 6.3libcurl skips the certificate verification for a QUIC connection under certain conditions, when built to use wolfSSL
CVE-2022-27782High· 7.5libcurl would reuse a previously created connection even when a TLS or SSHrelated option had been changed that should have prohibited reuse.libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse i…
CVE-2021-22926High· 7.5libcurl-using applications can ask for a specific client certificate to be used in a transfer
CVE-2026-4873Medium· 5.9A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool
CVE-2025-13034Medium· 5.9When using `CURLOPT_PINNEDPUBLICKEY` option with libcurl or `--pinnedpubkey` with the curl tool, curl should check the public key of the server certificate to verify the peer. This check was skipped in a certain condition that would the…