Astra Linux – Vulnerability in curl

In versions 7.7 through 7.76.1 of curl, there is an information disclosure issue when the -t command-line option, referred to as CURLOPTTELNETOPTIONS in libcurl, is used to send variable=content pairs to TELNET servers. This issue arises due to a flaw in the option parser for sending NEWENV...

Astra Linux – Vulnerability in curl

There is a vulnerability in curl version 7.87.0 where it is possible to exploit the memory reclamation mechanism. In this vulnerability, curl can be instructed to tunnel virtually all protocols it supports through an HTTP proxy. HTTP proxies can and often do deny such tunnel operations. When curl...

Astra Linux – Vulnerability in curl

When curl version 7.20.0 or later connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can send multiple responses at once, which are cached by curl. In this case, curl upgrades to TLS, but it does not discard the cached responses. Instead, it...

Astra Linux – Vulnerability in curl

A vulnerability related to insufficiently protected credentials, addressed in curl 7.83.0, may cause authentication or cookie header data to be leaked during HTTP redirections to the same host, but using a different port number...

Astra Linux – Vulnerability in curl

Curl versions 7.21.0 through 7.73.0 are vulnerable to uncontrolled recursion due to a stack overflow issue in FTP wildcard match parsing...

Astra Linux – Vulnerability in curl

Curl versions 7.20.0 through 7.70.0 are vulnerable to improper restrictions on the names of files and other resources, which can lead to overwriting of local files when the -J flag is used...

Astra Linux – Vulnerability in curl

There is a vulnerability in the handling of certificate validation in curl v8.1.0, particularly in how wildcard patterns are matched when listed as “Subject Alternative Name” in TLS server certificates. Curls can be modified to use its own name matching function for TLS, rather than the one...

Astra Linux – Vulnerability in curl

There is an information disclosure vulnerability in curl v8.1.0 when performing HTTPS transfers. libcurl may incorrectly use the read callback CURLOPTREADFUNCTION to request data to be sent, even when the CURLOPTPOSTFIELDS option is set. This occurs if the same handle was previously used to issue...

SUSE CVE-2025-5264

Due to insufficient escaping of the newline character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. This vulnerability was fixed in Firefox 139, Firefox ESR 115.24, Firefox ESR 128.11,...

curl: curl cross-origin HTTPS redirect reuses TLS client certificate for unintended second-origin mTLS authentication

Summary: When curl follows an HTTPS redirect to a different origin under normal -L / CURLOPTFOLLOWLOCATION behavior, it still presents the configured TLS client certificate to the redirected-to HTTPS server. This happens without --location-trusted / CURLOPTUNRESTRICTEDAUTH, even though curl alrea...

Fedora 43 : php (2026-c4d1ca4f16)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-c4d1ca4f16 advisory. PHP version 8.4.21 07 May 2026 Core: Fixed bug GH-19983 GC assertion failure with fibers, generators and destructors. iliaal Fixed bug GH-21478...

curl: CVE-2026-9080: UAF after pause in socket callback

Hi all, We've found a heap-use-after-free in lib/multiev.c triggered by calling curleasypause from within a CURLMOPTSOCKETFUNCTION callback. ASAN-confirmed with the self-contained reproducer below. Affected versions: 8.13.0 – 8.20.0 current. The entry-action write line 280 has been vulnerable sin...

Advisory ROSA-SA-2026-3278

software: curl 8.7.1 OS: ROSA-CHROME unaffected versions = curl-8.7.1-7 affected versions curl-8.7.1-7 CVE-ID: CVE-2026-3784 BDU-ID: None CVE-Crit: MEDIUM CVE-DESC.: A vulnerability in curl involves incorrectly reusing an existing HTTP proxy connection CONNECT when making requests with different...

curl: Curl: Certificate validation bypass due to OCSP stapling flaw

A flaw was found in curl. When curl is configured to use the Certificate Status Request TLS Transport Layer Security extension, also known as OCSP Online Certificate Status Protocol stapling, it fails to properly detect issues with the OCSP response. This can lead curl to incorrectly validate 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-8.20.0-2.hum1 aarch64, x8664 libcurl-8.20.0-2.hum1 aarch64, x8664 libcurl-devel-8.20.0-2.hum1 aarch64, x8664 libcurl-minimal-8.20.0-2.hum1 aarch64, x8664 curl-8.20.0-2.hum1.src src...

curl: curl --skip-existing has a TOCTOU race that lets a post-check symlink redirect the later download write

Summary: The curl CLI's --skip-existing option performs a separate existence check before the download body is written. In the verified path, curl first calls stat on the target pathname and decides "the file does not exist, so continue", but it does not keep an fd bound to that decision. The...

SUSE SLES15 Security Update : curl (SUSE-SU-2026:1940-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1940-1 advisory. Security issues fixed: - CVE-2026-4873: connection reuse ignores TLS requirement bsc1262631. - CVE-2026-5545: wrong reuse of HTTP...

Photon OS 4.0: Curl PHSA-2026-4.0-1020

An update of the curl package has been released. %NASLMINLEVEL 80900 C Tenable, Inc. The descriptive text and package checks in this plugin were extracted from VMware Security Advisory PHSA-2026-4.0-1020. The text itself is copyright C VMware, Inc. include'compat.inc'; if description...

Security Bulletin: curl vulnerability

Summary Prior versions of Classic Remote Capture may include this curl vulnerability. Vulnerability Details CVEID:CVE-2025-9086 DESCRIPTION: 1. A cookie is set using the secure keyword for https://target 2. curl is redirected to or otherwise made to speak with http://target same hostname, but...

Security update for curl

This update for curl fixes the following issues: Security issues fixed: CVE-2026-4873: connection reuse ignores TLS requirement bsc1262631. CVE-2026-5545: wrong reuse of HTTP Negotiate connection bsc1262632. CVE-2026-6253: proxy credentials leak over redirect-to proxy bsc1262635. CVE-2026-6276:...