Guzzle
CVE-2022-31043
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK
2 techniques across 2 tactics: Collection, Discovery The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. |
| Exploit ScenarioDerived | A remote attacker could access sensitive data that should not be disclosed by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
Guzzle is an open source PHP HTTP client. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Exposure of Sensitive Information vulnerability could allow attackers to access sensitive data that should not be disclosed.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Minimize information in error messages, implement proper access controls, encrypt sensitive data at rest and in transit.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 2 packages in composer
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Exposure of Sensitive Information (CWE-200), which allows attackers to access sensitive data that should not be disclosed. Guzzle is an open source PHP HTTP client. In affected versions Authorization headers on requests are sensitive information. On making a request using the https scheme to a server which responds with a redirect to a URI with the http scheme, we should not forward the Authorization header on. This is much the same as to how we don't forward on the header if the host changes. Prior to this fix, https to http downgrades did not result in the Authorization header being removed, only changes to the host. Affected Guzzle 7 users should upgrade to Guzzle 7.4.4 as soon as possible. Affected users using any earlier series of Guzzle should upgrade to Guzzle 6.5.7 or 7.4.4. Users unable to upgrade may consider an alternative approach which would be to use their own redirect middleware. Alternately users may simply disable redirects all together if redirects are not expected or required. Affected products include: Guzzlephp Guzzle, Drupal, Debian Debian Linux.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Guzzle is an open source PHP HTTP client. In affected versions Authorization headers on requests are sensitive information. On making a request using the https scheme to a server which responds with a redirect to a URI with the http scheme, we should not forward the Authorization header on. This is much the same as to how we don't forward on the header if the host changes. Prior to this fix, https to http downgrades did not result in the Authorization header being removed, only changes to the host. Affected Guzzle 7 users should upgrade to Guzzle 7.4.4 as soon as possible. Affected users using any earlier series of Guzzle should upgrade to Guzzle 6.5.7 or 7.4.4. Users unable to upgrade may consider an alternative approach which would be to use their own redirect middleware. Alternately users may simply disable redirects all together if redirects are not expected or required.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)NVD
Host confusion in GuzzleHttp Guzzle before 7.15.2 and 8.0.1 allows remote attackers who can influence a fetched URI to b
Cookie domain scope bypass in Guzzle PHP HTTP client (prior to 7.15.2 and 8.0.1) allows improper cookie sharing via non-
URI fragment leakage in guzzlehttp/guzzle's RedirectMiddleware (versions before 7.15.1) exposes sensitive client-side da
Cookie scope leakage in guzzlehttp/guzzle before 7.15.1 allows an attacker controlling a child subdomain to receive host
Guzzle is a PHP HTTP client. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authenticati
Guzzle, an extensible PHP HTTP client. Rated high severity (CVSS 7.7), this vulnerability is remotely exploitable, low a
Guzzle, an extensible PHP HTTP client. Rated high severity (CVSS 7.7), this vulnerability is remotely exploitable, low a
Guzzle is an open source PHP HTTP client. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no
Denial of service in guzzlehttp/guzzle versions before 7.15.1 allows a malicious or compromised upstream server to exhau
Proxy-Authorization header leakage in guzzlehttp/guzzle before 7.14.2 allows origin servers to receive proxy credentials
Host validation bypass in guzzlehttp/psr7 before 2.12.3 enables URI authority confusion attacks against PHP applications
Cookie domain suffix-matching bypass in Guzzle PHP HTTP client (prior to 7.12.3) allows cross-host cookie disclosure, co
Exploit-DB