curl: CVE-2026-11856: cross-origin Digest auth state leak

Summary: This issue is the HTTP sibling to the previously disclosed RTSP Digest auth leak. When an application uses libcurl and reuses the same easy handle for sequential transfers the documented best practice, the Digest authentication state captured from the first origin is silently sent to the...

Amazon Linux 2023 : tomcat10, tomcat10-admin-webapps, tomcat10-el-5.0-api (ALAS2023-2026-1776)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1776 advisory. Allocation of Resources Without Limits or Throttling vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from...

CVE-2026-42855

arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, the WebServer Digest authentication implementation in arduino-esp32 computes the authentication hash using the URI field from the client's Authorization header,...

curl: PRE_PROXY change leaks stale Proxy Digest state across proxy-chain boundary

Summary After a Digest-authenticated HTTP proxy transfer, changing only CURLOPTPREPROXY on the same libcurl easy handle does not clear stale proxy Digest/auth state. If the new SOCKS pre-proxy resolves the same HTTP proxy hostname to a different proxy endpoint, the second proxy receives a...

curl: RTSP Digest auth state leaks across origins on reused libcurl easy handle

Summary When a reused libcurl easy handle first authenticates to one RTSP origin with Digest authentication and is then switched to a different RTSP origin, libcurl can send the old origin's Digest authentication state to the new origin. The second RTSP server does not need to send a...

curl: libcurl 8.20.0 ignores HTTP Digest domain protection space and preemptively leaks Digest auth outside the declared scope

Summary: libcurl 8.20.0 ignores the server-declared HTTP Digest domain protection space for origin authentication and reuses stored Digest state too broadly on the same easy handle. After a successful Digest-authenticated request, a later request on the same easy handle can receive a preemptive...

CVE-2026-43512

A flaw was found in Apache Tomcat. When DIGEST authentication was configured, any user not known to the configured Realm would be authenticated if they presented the password "null". This allows a remote attacker to bypass security controls. Mitigation To mitigate this issue, disable DIGEST...

CLSA-2026-1779968889 Fix of 7 CVEs

SECURITY UPDATE: Authentication Bypass in digest authentication - debian/patches/CVE-2026-43512.patch: reject digest authentication attempts for unknown users in getDigest - CVE-2026-43512 SECURITY UPDATE: Account lockout bypass in LockOutRealm via case variation of user names -...

SUSE-SU-2026:2103-1 Security update for apache2

This update for apache2 fixes the following issues - CVE-2026-23918: http2: double free and possible RCE on early reset bsc1263957. - CVE-2026-24072: modrewrite elevation of privileges via apexpr bsc1263935. - CVE-2026-28780: heap buffer overflow in modproxyajp via ajpmsgcheckheader bsc1264163. -...

Important: httpd

Issue Overview: An escalation of privilege bug in various modules in Apache HTTP 2.4.66 and earlier allows local .htaccess authors to read files with the privileges of the httpd user. Users are recommended to upgrade to version 2.4.67, which fixes this issue. CVE-2026-24072 Heap-based Buffer...

Amazon Linux 2023 : httpd, httpd-core, httpd-devel (ALAS2023-2026-1720)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1720 advisory. An escalation of privilege bug in various modules in Apache HTTP 2.4.66 and earlier allows local .htaccess authors to read files with the privileges of the httpd user. Users are recommended to...

CLSA-2026-1779372929 curl: Fix of CVE-2026-7168

CVE-2026-7168: clear proxy Digest auth state when CURLOPTPROXY is reassigned to a different proxy host on the same easy handle so a stale Proxy-Authorization header is not replayed to the new proxy...

CLSA-2026-1779372207 curl: Fix of CVE-2026-7168

CVE-2026-7168: clear proxy Digest auth state when CURLOPTPROXY is reassigned to a different proxy host on the same easy handle so a stale Proxy-Authorization header is not replayed to the new proxy...

OESA-2026-2422 perl-Authen-SASL security update

Authen::SASL::Perl is the pure Perl implementation of SASL mechanisms in the Authen::SASL framework, At the time of this writing it provides the client part implementation for the following SASL mechanisms. Security Fixes: Authen::SASL::Perl::DIGESTMD5 versions 2.04 through 2.1800 for Perl...

OESA-2026-2401 httpd security update

Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Security Fixes: An escalation of privilege bug in various modules in Apache HTTP 2.4.66 and earlier allows local .htaccess authors to read files with the privileges of the httpd user. Users are recommended to upgrade to...

CLSA-2026-1779374454 Fix of 7 CVEs

SECURITY UPDATE: multiple security fixes - debian/patches/CVE-2026-41284.patch: add a configurable maxRequestBodySize init-param to the WebDAV servlet to bound LOCK/PROPFIND XML request bodies; reject oversized bodies with 413 Request Entity Too Long. Includes the upstream...

CVE-2026-7168

A flaw was found in libcurl. When a user performs a transfer over an HTTP proxy using Digest authentication and then reuses the same handle for a second transfer with a different proxy host, libcurl incorrectly sends the Proxy-Authorization header intended for the first proxy to the second proxy...

Astra Linux – Vulnerability in Squid

Squid is vulnerable to a Denial of Service attack, where a remote attacker can carry out a buffer overflow attack by writing up to 2 MB of arbitrary data into heap memory when Squid is configured to accept HTTP Digest Authentication...

Astra Linux - уязвимость в tomcat9

DEPRECATED: There is a vulnerability related to authentication bypass in digest authentication in Apache Tomcat. This issue affects Apache Tomcat versions as follows: 11.0.0-M1 through 11.0.21, 10.1.0-M1 through 10.1.54, 9.0.0.M1 through 9.0.117, 8.5.0 through 8.5.100, and versions prior to 7.0.0...

Astra Linux – Vulnerability in Firefox

A HTTP digest authentication nonce value was generated using rand, which may result in predictable values. This vulnerability affects Firefox versions less than 126...