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CVE-2022-31091

26
FAUCET Score

CVE-2022-31091 affects Guzzle, an extensible PHP HTTP client, specifically versions prior to 7.4.5 and 6.5.8. The vulnerability allows sensitive Authorization and Cookie headers to be inadvertently sent to different ports during redirects, as Guzzle previously only considered host or scheme changes for header removal. This is a high-severity vulnerability (CVSS 7.7) with a network attack vector and low complexity, potentially leading to information disclosure (CWE-200). There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.5.8CPE matchmatch criteria
cpe:2.3:a:guzzlephp:guzzle:*:*:*:*:*:*:*:*
>= 7.0.0, < 7.4.5CPE matchmatch criteria
cpe:2.3:a:guzzlephp:guzzle:*:*:*:*:*:*:*:*
11.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.7HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.1
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.41%
Probability of exploitation in next 30 days
EPSS Percentile
69.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0141 is in the 67th percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

composerpatch availablevia ghsa
Product: guzzlehttp/guzzleFixed in: 6.5.8
composerpatch availablevia ghsa
Product: guzzlehttp/guzzleFixed in: 7.4.5
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-q559-8m2m-g699high

Change in port should be considered a change in origin

Jun 21, 2022

References

github.com / guzzle/guzzle/commit/1dd98b0564cb3f6bd16ce683cb755f94c10fbd82
PatchThird Party Advisory
github.com / guzzle/guzzle/security/advisories/GHSA-q559-8m2m-g699
MitigationThird Party Advisory
security.gentoo.org / glsa/202305-24
debian.org / security/2022/dsa-5246
Third Party Advisory