Vulnerability in Guzzle Psr7

CVE-2023-29197

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 state…

EPSS: 0.012 (64.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-29197?
CVE-2023-29197 is a medium-severity vulnerability in Guzzle Psr7, classified under CWE-436. CVSS score: 5.3/10. Published 2023-04-17.
How severe is CVE-2023-29197?
Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2023-29197 known to be exploited?
10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.