curl: curl: Hsts Response Erases Persisted Entries

A flaw was found in curl. When persistent HTTP Strict Transport Security HSTS caching is enabled, a remote HTTPS server can return an out-of-range expiration value that fails time serialization during cache saving. Because curl truncates the cache file prior to writing the update, this...

curl: curl: leaking host credentials to HTTP proxy

A flaw was found in curl. A malicious or compromised HTTP proxy server can trick curl into sending authentication credentials intended for the target destination server directly to the proxy itself. When establishing a connection tunnel, if the proxy replies with an HTTP 401 Unauthorized status...

ROOT-OS-DEBIAN-13-CVE-2026-8286 CVE-2026-8286 in curl - Patched by Root

Root has patched CVE-2026-8286 in the curl package for Root:Debian:13. Multiple fixed versions available...

ROOT-OS-DEBIAN-13-CVE-2026-8924 CVE-2026-8924 in curl - Patched by Root

Root has patched CVE-2026-8924 in the curl package for Root:Debian:13. Multiple fixed versions available...

ROOT-OS-DEBIAN-13-CVE-2026-8927 CVE-2026-8927 in curl - Patched by Root

Root has patched CVE-2026-8927 in the curl package for Root:Debian:13. Multiple fixed versions available...

CVE-2026-92392

During an upload, curl mishandles HTTP/2 RSTSTREAM received from the server with reason HTTP11REQUIRED or REFUSEDSTREAM leading to a use after free of a struct Curleasy object...

AZL-108510 CVE-2026-92392 affecting package rust 1.96.1-2

During an upload, curl mishandles HTTP/2 RSTSTREAM received from the server with reason HTTP11REQUIRED or REFUSEDSTREAM leading to a use after free of a struct Curleasy object...

AZL-108486 CVE-2026-92392 affecting package rust 1.75.0-31

During an upload, curl mishandles HTTP/2 RSTSTREAM received from the server with reason HTTP11REQUIRED or REFUSEDSTREAM leading to a use after free of a struct Curleasy object...

DEBIAN-CVE-2026-92392

During an upload, curl mishandles HTTP/2 RSTSTREAM received from the server with reason HTTP11REQUIRED or REFUSEDSTREAM leading to a use after free of a struct Curleasy object...

AZL-108402 CVE-2026-92392 affecting package mysql 8.0.46-2

During an upload, curl mishandles HTTP/2 RSTSTREAM received from the server with reason HTTP11REQUIRED or REFUSEDSTREAM leading to a use after free of a struct Curleasy object...

ALPINE-CVE-2026-92392

During an upload, curl mishandles HTTP/2 RSTSTREAM received from the server with reason HTTP11REQUIRED or REFUSEDSTREAM leading to a use after free of a struct Curleasy object...

CURL-CVE-2026-94265 Authorization: Negotiate sent to foreign origin

When processing an HTTP redirect to a URL containing userinfo a username:password component, curl might erroneously retain and re-transmit the original host's HTTP Negotiate authentication state. Consequently, a malicious server can trigger a redirect containing arbitrary userinfo to force curl t...

CURL-CVE-2026-92390 -J no-clobber guarantee bypassed with 103 early hints

When invoked with --remote-header-name -J, curl fails to preserve its documented anti-clobbering protection if an intermediate 103 Early Hints response precedes the final HTTP response, or if an ETag header is processed before Content-Disposition under --etag-save. This flaw allows an HTTPS serve...

CURL-CVE-2026-86409 stale SigV4 headers sent unintended

Setting CURLOPTAWSSIGV4 to NULL does not disable SigV4 authentication, contrary to expectations and documentation. A subsequent transfer on the same handle still sends an Authorization: AWS4-HMAC-SHA256 header to whatever URL is set next, leaking state information...

CURL-CVE-2026-92386 server-set cookie aborts cookie jar load

When writing a long cookie name and value to a Netscape cookie jar, a remote HTTP server can make curl write a record that exceeds its line-length parsing limit. Consequently, any subsequent curl invocation reading from that same cookie jar using --cookie silently aborts parsing prematurely upon...

CURL-CVE-2026-87862 HSTS cache import drops longer-lived child

Importing a includeSubDomains parent HSTS entry before a longer-lived child entry, silently drops the child. Consequently, when the parent expires, the child's valid HSTS policy is lost, causing curl to issue unencrypted HTTP requests rather than upgrading to HTTPS...

CURL-CVE-2026-87864 IMAP APPEND plus CRLF conversion command injection

Enabling CURLOPTCRLF causes curl to advertise the raw input byte count in the IMAP APPEND N literal while transmitting line-ending expanded data. The server reads only $N$ bytes for the payload, causing the remaining overflow bytes to be interpreted and executed as pipelined IMAP commands within...

CURL-CVE-2026-87863 HSTS response erases persisted entries

An authenticated HTTPS origin can supply an HSTS max-age value that the parser accepts, but time serialization later fails to process. On 64-bit systems, extreme max-age values compute an absolute expiry within standard time integer limits that exceeds calendar time structure bounds. During cache...

CURL-CVE-2026-107929 local interface connection reuse mixup

When CURLOPTINTERFACE or the command line tool's --interface option is set with one of the documented prefixes if!, host!, ifhost!, that binding is not part of the connection reuse key, so a later transfer asking for a different source can silently reuse an existing connection and go out from the...

CURL-CVE-2026-86413 Negotiate credentials sent to redirected origin

When using an ambient user in a first transfer doing Negotiate authentication and asked to follow redirects, curl could pass on its credential details to an unrelated second origin when asked to redirect there...