No exploitation reportedFix available

CVE-2022-24775

Q: Is CVE-2022-24775 actively exploited?

Active exploitation of CVE-2022-24775 has not been confirmed. Its EPSS score was 2.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-24775?

CVE-2022-24775 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

No exploitation reported by the sources we read.

Published2022-03-21
Fixed in9.3.9 · 9.2.16
WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

guzzlehttp/psr7 is a PSR-7 HTTP message library. Versions prior to 1.8.4 and 2.1.1 are vulnerable to improper header parsing. An attacker could sneak in a new line character and pass untrusted values. The issue is patched in 1.8.4 and 2.1.1. There are currently no known workarounds.

Timeline

dates in UTC

2022-03-2119:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-24775?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-24775?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Drupal

Branch	Affected	Fixed in	Source
9.3	≥ 9.3.0, < 9.3.9	9.3.9	NVD
9.2	≥ 8.0.0, < 9.2.16	9.2.16	NVD

Guzzlephp psr-7

Branch	Affected	Fixed in	Source
2.x	≥ 2.0.0, < 2.1.1	2.1.1	NVD
1.8	< 1.8.4	1.8.4	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Drupal to 9.3.9 · 9.2.16

Advisories and patches

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-04-23
OpenCVESSVC decisionnone—
CNACVSS 3.17.5read 2026-10-23
NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.05read 2026-10-23
CNAweakness (CWE)CWE-20read 2026-10-23
FIRST EPSSEPSS score2.5 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published: 2022-03-21
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-24775?

Is CVE-2022-24775 actively exploited?

Active exploitation of CVE-2022-24775 has not been confirmed. Its EPSS score was 2.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-24775?

CVE-2022-24775 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

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