CVE Tools
Sign in

CVE-2023-29197

Improper header name validation in guzzlehttp/psr7

Published: Apr 17, 2023Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-436
5.3MEDIUM
NVD MITRE
EPSS Score
1.2%
Top 34.4%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available
Self-Check
Nuclei · OpenVAS

Description

guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Affected versions are subject to improper header parsing. An attacker could sneak in a newline (\n) into both the header names and values. While the specification states that \r\n\r\n is used to terminate the header list, many servers in the wild will also accept \n\n. This is a follow-up to CVE-2022-24775 where the fix was incomplete. The issue has been patched in versions 1.9.1 and 2.4.5. There are no known workarounds for this vulnerability. Users are advised to upgrade.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-436

Affected Products

guzzlephp
oss-projectaka guzzle
psr-7Library
OSS Libraries / generic-library
fedoraproject
oss-project·USaka fedora project
fedoraOn-premOS
Operating Systems / linux-distro
Packagist
package-ecosystem
guzzlehttp/psr7
OSS Libraries
guzzle
oss-projectaka guzzlehttp/guzzle, guzzlehttp
psr7Library
OSS Libraries / generic-library

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Is your org exposed to CVE-2023-29197?We'll check your whole external perimeter for exposure — free. Check my exposure

References

https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-24775
cve.mitre.org
https://github.com/guzzle/psr7/security/advisories/GHSA-q7rv-6hp3-vh96
github.com
https://github.com/guzzle/psr7/security/advisories/GHSA-wxmh-65f7-jcvw
github.com
and 9 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2023-29197 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows