10729 matches found
JLSEC-2026-402
A cleartext transmission of sensitive information vulnerability exists in curl v7.88.0 that could cause HSTS functionality fail when multiple URLs are requested serially. Using its HSTS support, curl can be instructed to use HTTPS instead of usingan insecure clear-text HTTP step even when HTTP is...
JLSEC-2026-405
A vulnerability in input validation exists in curl 8.0 during communication using the TELNET protocol may allow an attacker to pass on maliciously crafted user name and "telnet options" during server negotiation. The lack of proper input scrubbing allows an attacker to send content or perform...
JLSEC-2026-403
A cleartext transmission of sensitive information vulnerability exists in curl v7.88.0 that could cause HSTS functionality to behave incorrectly when multiple URLs are requested in parallel. Using its HSTS support, curl can be instructed to use HTTPS instead of using an insecure clear-text HTTP...
JLSEC-2026-406
A path traversal vulnerability exists in curl 8.0.0 SFTP implementation causes the tilde character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can...
JLSEC-2026-394
When curl 7.84.0 saves cookies, alt-svc and hsts data to local files, it makes the operation atomic by finalizing the operation with a rename from a temporary name to the final target file name.In that rename operation, it might accidentally widen the permissions for the target file, leaving the...
CLSA-2026-1777878036 curl: Fix of 2 CVEs
CVE-2019-5436: tftp: use the current blksize for recvfrom - CVE-2016-8615: cookie: replace use of fgets with custom version...
OPENSUSE-SU-2026:10674-1 curl-8.20.0-1.1 on GA media
These are all security issues fixed in the curl-8.20.0-1.1 package on the GA media of openSUSE Tumbleweed...
curl: wcurl treats some URL operands after -- as curl options
I found that wcurl does not always keep operands after -- in a pure URL-data context. The documented way to pass curl options through wcurl is --curl-options, but a value supplied as a URL operand can still reach the final curl command as an option, for example wcurl -- "--url=file:///...". A...
Moderate: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: curl: curl-8.20.0-0.1.hum1 aarch64, x8664 libcurl-8.20.0-0.1.hum1 aarch64, x8664 libcurl-devel-8.20.0-0.1.hum1 aarch64, x8664 libcurl-minimal-8.20.0-0.1.hum1 aarch64, x8664 curl-8.20.0-0.1.hum1.s...
curl: curl: Proxy credential disclosure via redirects to unauthenticated proxies
A flaw was found in curl. When curl is configured to use distinct proxies for different URL schemes, a redirect from a URL using an authenticated proxy to one using an unauthenticated proxy can inadvertently expose the initial proxy's credentials. This improper credential management CWE-522 may...
curl: curl: Information disclosure due to incorrect TLS connection reuse
A flaw was found in curl. A remote attacker could exploit this by initiating an unencrypted connection via IMAP, SMTP, or POP3 and then making a subsequent request to the same host that requires Transport Layer Security TLS. Due to incorrect connection reuse, the subsequent request would bypass t...
curl: libcurl 8.20.0 incomplete fix for CVE-2026-7168: changing only CURLOPT_PROXYPORT leaks stale Proxy Digest auth to a different proxy
Summary: I found an incomplete-fix variant of CVE-2026-7168 in curl 8.20.0. The 8.20.0 fix clears state.proxydigest / state.authproxy when CURLOPTPROXY changes, but not when only CURLOPTPROXYPORT changes. On the same easy handle, request 1 through proxyA CURLOPTPROXYPORT=18197 learns Proxy Digest...
Curl 7.40.0 < 8.20.0 Wrong SMB Connection Reuse
The version of curl installed on the remote host is 7.40.0 prior to 8.20.0. It is, therefore, affected by a wrong SMB connection reuse vulnerability: - libcurl might in some circumstances reuse the wrong connection for SMBS transfers. The code erroneously did not consider the share name as a...
Curl 8.17.0 < 8.20.0 OCSP Stapling Bypass
The version of curl installed on the remote host is 8.17.0 prior to 8.20.0. It is, therefore, affected by an OCSP stapling bypass vulnerability: - When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is...
Curl 7.10.6 < 8.20.0 Wrong Reuse of HTTP Negotiate Connection
The version of curl installed on the remote host is 7.10.6 prior to 8.20.0. It is, therefore, affected by an authentication bypass vulnerability: - libcurl might in some circumstances reuse the wrong connection when asked to do an authenticated HTTPS request after a Negotiate-authenticated one,...
Curl 7.14.1 < 8.20.0 Proxy Credential Disclosure
The version of curl installed on the remote host is 7.14.1 prior to 8.20.0. It is, therefore, affected by a proxy credential disclosure vulnerability: - curl might erroneously pass on credentials for a first proxy to a second proxy. This flaw occurs when different proxies are configured for...
CVE-2026-6253
A flaw was found in curl. When curl is configured to use distinct proxies for different URL schemes, a redirect from a URL using an authenticated proxy to one using an unauthenticated proxy can inadvertently expose the initial proxy's credentials. This improper credential management CWE-522 may...
CVE-2026-4873
A flaw was found in curl. A remote attacker could exploit this by initiating an unencrypted connection via IMAP, SMTP, or POP3 and then making a subsequent request to the same host that requires Transport Layer Security TLS. Due to incorrect connection reuse, the subsequent request would bypass t...
