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. An HTTP method name may contain a space followed by the name of a protected resource. It is possible that a server would interpret this as a request for that protected resource, such as in the "GET /admin? HTTP/1.1 /static/images HTTP/1.1" example.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 62%
VendorProductVersion
haproxyhaproxy
2.0.0 ≤
𝑥
< 2.0.24
haproxyhaproxy
2.2.0 ≤
𝑥
< 2.2.16
haproxyhaproxy
2.3.0 ≤
𝑥
< 2.3.13
haproxyhaproxy
2.4.0 ≤
𝑥
< 2.4.3
debiandebian_linux
11.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
haproxy
bullseye (security)
2.2.9-2+deb11u6
fixed
bullseye
2.2.9-2+deb11u6
fixed
buster
not-affected
stretch
not-affected
bookworm
2.6.12-1+deb12u1
fixed
bookworm (security)
2.6.12-1+deb12u1
fixed
sid
2.9.11-1
fixed
trixie
2.9.11-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
haproxy
jammy
Fixed 2.2.9-2ubuntu1
released
impish
Fixed 2.2.9-2ubuntu1
released
hirsute
Fixed 2.2.9-1ubuntu0.1
released
focal
Fixed 2.0.13-2ubuntu0.2
released
bionic
not-affected
xenial
not-affected
trusty
dne