CVE-2022-0711
This flaw could allow an attacker to send crafted HTTP response packets which lead to an infinite loop, eventually resulting in a denial of service condition.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 16.6%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
A flaw was found in the way HAProxy processed HTTP responses containing the "Set-Cookie2" header. This flaw could allow an attacker to send crafted HTTP response packets which lead to an infinite loop, eventually resulting in a denial of service condition. The highest threat from this vulnerability is availability.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 16.56% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- haproxy/haproxy · redhat/openshift container platform · redhat/software collections · redhat/enterprise linux · debian/debian linux
- Source
- secalert@redhat.com
EPSS 16.6% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://access.redhat.com/security/cve/cve-2022-0711Third Party Advisory
- https://github.com/haproxy/haproxy/commit/bfb15ab34ead85f64cd6da0e9fb418c9cd14cee8Patch, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5102Third Party Advisory
- https://www.mail-archive.com/haproxy%40formilux.org/msg41833.html
- https://access.redhat.com/security/cve/cve-2022-0711Third Party Advisory
- https://github.com/haproxy/haproxy/commit/bfb15ab34ead85f64cd6da0e9fb418c9cd14cee8Patch, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5102Third Party Advisory
- https://www.mail-archive.com/haproxy%40formilux.org/msg41833.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.