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Bugs fixes in "haproxy"

Origin Bug number Title Date fixed
CVE CVE-2026-55204 HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c that 2026-10-15
CVE CVE-2026-55203 HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgi_conn structure's drl field that allows buffer 2026-10-15
CVE CVE-2026-33555 An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced conten 2026-10-15
CVE CVE-2026-26081 HAProxy Community Edition 3.0 through 3.3 before 3.3.3 lacks a length check for the NEW_TOKEN format. HAProxy Enterprise and ALOHA are also affected. 2026-10-15
CVE CVE-2026-26080 HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are a 2026-10-15
Launchpad 2153485 Backport haproxy for stonking cycle 2026-10-15
CVE CVE-2026-55204 HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c that 2026-10-15
CVE CVE-2026-55203 HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgi_conn structure's drl field that allows buffer 2026-10-15
CVE CVE-2026-33555 An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced conten 2026-10-15
CVE CVE-2026-26081 HAProxy Community Edition 3.0 through 3.3 before 3.3.3 lacks a length check for the NEW_TOKEN format. HAProxy Enterprise and ALOHA are also affected. 2026-10-15
CVE CVE-2026-26080 HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are a 2026-10-15
Launchpad 2153485 Backport haproxy for stonking cycle 2026-10-15
CVE CVE-2026-55204 HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c that 2026-10-14
CVE CVE-2026-55203 HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgi_conn structure's drl field that allows buffer 2026-10-14
CVE CVE-2026-33555 An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced conten 2026-10-14
Launchpad 2153485 Backport haproxy for stonking cycle 2026-10-14
CVE CVE-2026-55204 HAProxy through 3.4.0, fixed in commit 9a6d1fe, contains a null pointer dereference vulnerability in hpack_dht_insert() within src/hpack-tbl.c that 2026-10-14
CVE CVE-2026-55203 HAProxy through 3.4.0, fixed in commit 5985276, contains an integer overflow vulnerability in the fcgi_conn structure's drl field that allows buffer 2026-10-14
CVE CVE-2026-33555 An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced conten 2026-10-14
Launchpad 2153485 Backport haproxy for stonking cycle 2026-10-14



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