CVE-2026-87863

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...

CVE-2026-86412

A remote HTTP server can set a cookie that curl accepts and writes to a Netscape cookie jar but cannot reload. On the next invocation using the same path for --cookie and --cookie-jar, curl fails before connecting, then the cleanup procedure replaces the jar with an empty file, deleting cookies f...

CVE-2026-92386

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 will silently abort parsing prematurely...

CVE-2026-87862

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...

CVE-2026-87864

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 th...

CVE-2026-107928

When curl is built with GnuTLS, a malicious WebSocket server can make curl send memory past its send buffer. This is due to an out of bounds read following when gnutlsrecordsend returns a number of bytes sent greater than the number of bytes it was given to send. GnuTLS does that after a blocked...

[SECURITY] Fedora 44 Update: curl-8.18.0-14.fc44

curl is a command line tool for transferring data with URL syntax, supporting FTP, FTPS, HTTP, HTTPS, SCP, SFTP, TFTP, TELNET, DICT, LDAP, LDAPS, FILE, IMA P, SMTP, POP3 and RTSP. curl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload, proxies, cookies,...

Multiple vulnerabilities impacts AIX due to cURL libcurl

IBM SECURITY ADVISORY First Issued: Wed Oct 14 00:51:44 CDT 2026 The most recent version of this document is available here: https://aix.software.ibm.com/aix/efixes/security/curladvisory13.asc Security Bulletin: Multiple vulnerabilities impacts AIX due to cURL libcurl...

Fedora 44 : curl (2026-a06b828d65)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-a06b828d65 advisory. - Fix incomplete mTLS config matching in conn reuse CVE-2026-8932 - Fix OpenLDAP SASL authentication bypass CVE-2026-13608 - Fix OpenSSL pinning...

FreeBSD : Curl -- Multiple vulnerabilities (14dab969-c797-11f1-a6ea-8447094a420f)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 14dab969-c797-11f1-a6ea-8447094a420f advisory. The Curl project reports: Tenable has extracted the preceding description block directly from...

PT-2026-114314

Name of the Vulnerable Software and Affected Versions curl affected versions not specified Description An authenticated HTTPS origin can provide an HSTS max-age value that is accepted by the parser but fails during subsequent time serialization. On 64-bit systems, extreme max-age values can resul...

Linux Distros Unpatched Vulnerability : CVE-2026-87863

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The Curl project reports: CVE-2026-87863 Note that Nessus relies on the presence of the package as reported by the vendor. %NASLMINLEVEL 80900 C Tenable, Inc...

Linux Distros Unpatched Vulnerability : CVE-2026-87865

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The Curl project reports: CVE-2026-87865 Note that Nessus relies on the presence of the package as reported by the vendor. %NASLMINLEVEL 80900 C Tenable, Inc...

Debian dsa-6558 : curl - security update

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6558 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6558-1 [email protected] https://www.debian.org/securit...

Linux Distros Unpatched Vulnerability : CVE-2026-87862

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The Curl project reports: CVE-2026-87862 Note that Nessus relies on the presence of the package as reported by the vendor. %NASLMINLEVEL 80900 C Tenable, Inc...

PT-2026-114420

An ftp:// transfer configured with CURLUSESSL NONE can reuse a pooled FTP control connection that a previous easy handle upgraded with STARTTLS and authenticated using a client certificate. The second handle performs neither a new TLS handshake nor a new FTP login, so the server continues to...

Curl -- Multiple vulnerabilities

The Curl project reports: local interface connection reuse mixup CVE-2026-107929 info leak uploading over WebSockets with GnuTLS CVE-2026-107928 password leak in CURLINFOEFFECTIVEURL CVE-2026-94266 Authorization: Negotiate sent to foreign origin CVE-2026-94265 server-set cookie aborts cookie jar...

RockyLinux 10 : curl (RLSA-2026:80512)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:80512 advisory. curl: curl: Proxy credential disclosure via redirects to unauthenticated proxies CVE-2026-6253 curl: libcurl: Authentication bypass due to incorrect HT...

Linux Distros Unpatched Vulnerability : CVE-2026-92392

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

CVE-2023-38545

CVE-2023-38545: Curl Vulnerability Proof of Concept This repository contains a Proof of Concept PoC designed to test systems for the CVE-2023-38545 vulnerability. The vulnerability affects the curl utility, specifically versions between 7.69.0 and 8.3.1, and is related to the handling of HTTP...