Authorization header disclosure via cross-origin redirects
Published Jun 27, 2022 · Updated Apr 23, 2025
Sensitive information exposure in Guzzle before 6.5.8 and 7.0.0 through 7.4.4 allows remote attackers to read Authorization headers via redirects. RedirectMiddleware compared only the destination host and failed to clear CURLOPT_HTTPAUTH and CURLOPT_USERPWD when a redirect changed only the scheme or port. Exploitation requires the Curl handler, configured Curl authentication, followed redirects, and an attacker-controlled endpoint that receives the redirected request.
Summary
What happened
Sensitive information exposure in Guzzle before 6.5.8 and 7.0.0 through 7.4.4 allows remote attackers to read Authorization headers via redirects. RedirectMiddleware compared only the destination host and failed to clear CURLOPT_HTTPAUTH and CURLOPT_USERPWD when a redirect changed only the scheme or port. Exploitation requires the Curl handler, configured Curl authentication, followed redirects, and an attacker-controlled endpoint that receives the redirected request.
The record
- CVE
- CVE-2022-31090
- Published
- Jun 27, 2022
- Updated
- Apr 23, 2025
- Vendor
- Guzzle
- Product
- Guzzle
- Classifications
- CWE-212, CWE-200
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 27, 2022CVE publishedPublication date reported by the CVE source.
- Apr 23, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 6.5.8
- Affected versionversion=>=7.0.0, < 7.4.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo