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CVE-2022-31081

23
FAUCET Score

CVE-2022-31081 affects HTTP::Daemon, a Perl HTTP server class, in versions prior to 6.15, and is also listed as affecting Debian Linux. This vulnerability, categorized as CWE-444, allows for potential privileged API access or cache poisoning due to improper handling of the Content-Length header. With a CVSS score of 6.5 (Medium), it has a low attack complexity and does not require user interaction, but its impact is limited to confidentiality and integrity. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is primarily a concern for applications directly using HTTP::Daemon, often in development or testing environments.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.15CPE matchmatch criteria
cpe:2.3:a:http\:\:daemon_project:http\:\:daemon:*:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.3HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.12%
Probability of exploitation in next 30 days
EPSS Percentile
80.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0212 is in the 69th percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Software CollectionsFixed in: rh-perl530-perl-HTTP-Daemon

Vendor Advisories (1)

redhatCVE-2022-31081Low

perl-HTTP-Daemon: HTTP:: Daemon allows request smuggling

Jun 27, 2022

References

metacpan.org / release/HTTP-Daemon
Release NotesVendor Advisory
cwe.mitre.org / data/definitions/444.html
Third Party Advisory
datatracker.ietf.org / doc/html/rfc7230
Third Party Advisory
github.com / libwww-perl/HTTP-Daemon/commit/8dc5269d59e2d5d9eb1647d82c449ccd880f7fd0
PatchThird Party Advisory
github.com / libwww-perl/HTTP-Daemon/commit/e84475de51d6fd7b29354a997413472a99db70b2
PatchThird Party Advisory
github.com / libwww-perl/HTTP-Daemon/security/advisories/GHSA-cg8c-pxmv-w7cf
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2022/09/msg00038.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/7U4XEPZ5Q3LNOQF3E6EXFWVSEXU5IZ6T
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/ECJ4ZPBQWD3B2CD6RRIVMENB5KUOJ3LC
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/XQBW2D43TDNYX4R2YBTNNZDBNZ45DINN
portswigger.net / research/http-desync-attacks-request-smuggling-reborn
ExploitThird Party Advisory