Vulnerabilities > Haproxy

DATE CVE VULNERABILITY TITLE RISK
2023-04-11 CVE-2023-25950 HTTP Request Smuggling vulnerability in Haproxy
HTTP request/response smuggling vulnerability in HAProxy version 2.7.0, and 2.6.1 to 2.6.7 allows a remote attacker to alter a legitimate user's request.
network
low complexity
haproxy CWE-444
7.3
2023-02-14 CVE-2023-25725 HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers are inadvertently lost in some situations, aka "request smuggling." The HTTP header parsers in HAProxy may accept empty header field names, which could be used to truncate the list of HTTP headers and thus make some headers disappear after being parsed and processed for HTTP/1.0 and HTTP/1.1.
network
low complexity
haproxy debian
critical
9.1
2022-03-02 CVE-2022-0711 Infinite Loop vulnerability in multiple products
A flaw was found in the way HAProxy processed HTTP responses containing the "Set-Cookie2" header.
network
low complexity
haproxy redhat debian CWE-835
5.0
2021-09-08 CVE-2021-40346 Integer Overflow or Wraparound vulnerability in multiple products
An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header that can be exploited to perform an HTTP request smuggling attack, allowing an attacker to bypass all configured http-request HAProxy ACLs and possibly other ACLs.
network
low complexity
haproxy debian fedoraproject CWE-190
5.0
2021-08-17 CVE-2021-39240 An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3.
network
low complexity
haproxy debian fedoraproject
5.0
2021-08-17 CVE-2021-39241 An issue was discovered in HAProxy 2.0 before 2.0.24, 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3.
network
low complexity
haproxy debian fedoraproject
5.0
2021-08-17 CVE-2021-39242 Improper Handling of Exceptional Conditions vulnerability in multiple products
An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3.
network
low complexity
haproxy debian fedoraproject CWE-755
5.0
2020-04-02 CVE-2020-11100 Out-of-bounds Write vulnerability in multiple products
In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request, possibly causing remote code execution.
8.8
2019-11-27 CVE-2019-19330 Injection vulnerability in multiple products
The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return (CR, ASCII 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII 0x0), aka Intermediary Encapsulation Attacks.
network
low complexity
haproxy canonical debian CWE-74
7.5
2019-10-23 CVE-2019-18277 HTTP Request Smuggling vulnerability in Haproxy
A flaw was found in HAProxy before 2.0.6.
network
haproxy CWE-444
4.3