When asking curl to use a .netrc file to find credentials and at the same time specifying a URL with a username (without a password), like… (CVE-2026-8926)
When asking curl to use a `.netrc` file to find credentials and at the same time specifying a URL with a username (without a password), like `https://[email protected]/`, curl could wrongly get and use the password for *another* user set in the `.netrc` file for that host if such a one exists and there is no match for the specified user.
AI Analysis
Technical Summary
This vulnerability, identified as CVE-2026-8926, concerns the leakage of passwords when credentials are stored in .netrc files or included in URLs. It affects Microsoft products such as Azure Linux and curl 3.0. The CVSS vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, and high confidentiality and integrity impact with no availability impact. No official patch or vendor advisory details are available at this time.
Potential Impact
The vulnerability can lead to the exposure of sensitive passwords, compromising confidentiality and integrity of affected systems. This could allow unauthorized access to resources or data. There is no indication of availability impact. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid using .netrc files or embedding user credentials in URLs in affected environments. Monitor official Microsoft Security Response Center communications for updates.
When asking curl to use a .netrc file to find credentials and at the same time specifying a URL with a username (without a password), like… (CVE-2026-8926)
Description
When asking curl to use a `.netrc` file to find credentials and at the same time specifying a URL with a username (without a password), like `https://[email protected]/`, curl could wrongly get and use the password for *another* user set in the `.netrc` file for that host if such a one exists and there is no match for the specified user.
CVSS v3.1
Score 9.1critical
Affected software
pkg:deb/ubuntu/curl?arch=source&distro=questingpkg:deb/ubuntu/curl?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CVE-2026-8926, concerns the leakage of passwords when credentials are stored in .netrc files or included in URLs. It affects Microsoft products such as Azure Linux and curl 3.0. The CVSS vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, and high confidentiality and integrity impact with no availability impact. No official patch or vendor advisory details are available at this time.
Potential Impact
The vulnerability can lead to the exposure of sensitive passwords, compromising confidentiality and integrity of affected systems. This could allow unauthorized access to resources or data. There is no indication of availability impact. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, avoid using .netrc files or embedding user credentials in URLs in affected environments. Monitor official Microsoft Security Response Center communications for updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-vw2x-3w8j-rq82
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-8926"]
- Cvss Version
- 3.1
Threat ID: 6a483cb427e9c79719d81f53
Added to database: 07/03/2026, 22:50:28 UTC
Last enriched: 07/12/2026, 11:59:41 UTC
Last updated: 10/02/2026, 14:46:12 UTC
Views: 108
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