SUSE SLES15 Security Update : haproxy (SUSE-SU-2026:2651-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2651-1 advisory. This update for haproxy fixes the following issues - CVE-2026-55203: integer overflow vulnerability in the fcgiconn structure's drl field that...

Security update for haproxy

This update for haproxy fixes the following issues CVE-2026-55203: integer overflow vulnerability in the fcgiconn structure's drl field that allows buffer misparse as new FCGI record headers bsc1268557. CVE-2026-55204: null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl....

SUSE-SU-2026:2652-1 Security update for haproxy

This update for haproxy fixes the following issues - CVE-2026-55203: integer overflow vulnerability in the fcgiconn structure's drl field that allows buffer misparse as new FCGI record headers bsc1268557. - CVE-2026-55204: null pointer dereference vulnerability in hpackdhtinsert within...

Security update for haproxy

This update for haproxy fixes the following issues CVE-2026-55203: integer overflow vulnerability in the fcgiconn structure's drl field that allows buffer misparse as new FCGI record headers bsc1268557. CVE-2026-55204: null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl....

SUSE-SU-2026:2651-1 Security update for haproxy

This update for haproxy fixes the following issues - CVE-2026-55203: integer overflow vulnerability in the fcgiconn structure's drl field that allows buffer misparse as new FCGI record headers bsc1268557. - CVE-2026-55204: null pointer dereference vulnerability in hpackdhtinsert within...

Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : HAProxy vulnerabilities (USN-8459-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8459-1 advisory. It was discovered that HAProxy incorrectly handled the FCGI demultiplexer record length field. A remote attacker could...

OPENSUSE-SU-2026:11090-1 haproxy-3.4.0+git31.fc300e9f2-1.1 on GA media

These are all security issues fixed in the haproxy-3.4.0+git31.fc300e9f2-1.1 package on the GA media of openSUSE Tumbleweed...

SUSE CVE-2026-55203

HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgiconn structure's drl field that allows buffer misparse as new FCGI record headers. When contentLength is 65535 and paddingLength is 1 or more, the drl field wraps to 0, causing incorrect record...

SUSE CVE-2026-55204

HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl.c that fails to validate the return value of hpackdhtdefrag when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memo...

Linux Distros Unpatched Vulnerability : CVE-2026-55203

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgiconn structure's drl field that allows buffer misparse as...

Linux Distros Unpatched Vulnerability : CVE-2026-55204

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl.c that fails to validat...

CVE-2026-55204

HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl.c that fails to validate the return value of hpackdhtdefrag when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memo...

CVE-2026-55203

HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgiconn structure's drl field that allows buffer misparse as new FCGI record headers. When contentLength is 65535 and paddingLength is 1 or more, the drl field wraps to 0, causing incorrect record...

UBUNTU-CVE-2026-55203

HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgiconn structure's drl field that allows buffer misparse as new FCGI record headers. When contentLength is 65535 and paddingLength is 1 or more, the drl field wraps to 0, causing incorrect record...

UBUNTU-CVE-2026-55204

HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl.c that fails to validate the return value of hpackdhtdefrag when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memo...

CVE-2026-55204

HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl.c that fails to validate the return value of hpackdhtdefrag when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memo...

CVE-2026-55204

HAProxy CVE-2026-55204 affects HAProxy up to version 3.4.0. It describes a null pointer dereference in the function hpack_dht_insert (in src/hpack-tbl.c) that fails to validate the return value of hpack_dht_defrag() when the memory pool is exhausted. Under memory pressure, HPACK dynamic table ins...

CVE-2026-55204

HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl.c that fails to validate the return value of hpackdhtdefrag when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memo...

CVE-2026-55204 HAProxy - NULL Pointer Dereference in hpack_dht_insert Function

HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl.c that fails to validate the return value of hpackdhtdefrag when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memo...

CVE-2026-55204 HAProxy - NULL Pointer Dereference in hpack_dht_insert Function

HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpackdhtinsert within src/hpack-tbl.c that fails to validate the return value of hpackdhtdefrag when the memory pool is exhausted. An attacker can trigger HPACK dynamic table insertions under memo...