CVE-2026-67297

EUVD-2026-51856
FreeRDP before 3.29.0 fails to enforce the RESPONSE_SIZE_LIMIT when processing Transfer-Encoding: chunked HTTP responses in http_response_recv_body(). Attackers controlling a malicious RD Gateway endpoint can send oversized chunked response bodies to exhaust client memory resources without triggering the configured size limit.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 29.79%
Affected Products (NVD)
VendorProductVersion
freerdpfreerdp
𝑥
< 3.29.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
freerdp2
bookworm
vulnerable
freerdp3
forky
3.31.1+dfsg-1
fixed
sid
3.31.1+dfsg-1
fixed
trixie
no-dsa
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
freerdp
bionic
needs-triage
jammy
dne
noble
dne
resolute
dne
xenial
needs-triage
freerdp2
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
dne
freerdp3
jammy
dne
noble
Fixed 3.30.0+dfsg-0ubuntu0.24.04.1
released
resolute
Fixed 3.30.0+dfsg-0ubuntu0.26.04.1
released
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
freerdp
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.15
fixed
freerdp-debuginfo
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.15
fixed
freerdp-debugsource
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.15
fixed
freerdp-devel
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.15
fixed
freerdp-libs
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.15
fixed
freerdp-libs-debuginfo
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.15
fixed
freerdp-server
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.15
fixed
freerdp-server-debuginfo
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.15
fixed
libwinpr
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.15
fixed
libwinpr-debuginfo
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.15
fixed
libwinpr-devel
Amazon Linux 2023
2:3.6.3-1.amzn2023.0.15
fixed
Common Weakness Enumeration
References
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2c6r-4pr4-9x8m
https://www.vulncheck.com/advisories/freerdp-before-resource-exhaustion-via-chunked-http-response
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-2c6r-4pr4-9x8m