DEBIAN-CVE-2026-9546

Source
https://security-tracker.debian.org/tracker/CVE-2026-9546
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-9546.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-9546
Upstream
Published
2026-07-03T07:16:25.893Z
Modified
2026-07-07T10:00:16.816800122Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

A vulnerability in libcurl caused the HTTP Referer: header to persist even when explicitly cleared. While the documentation states that passing NULL to CURLOPT_REFERER suppresses the header, the option failed to clear the internal state. As a result the previous referrer string was erroneously reused and sent in subsequent requests, potentially leaking sensitive information to unintended servers.

References

Affected packages

Debian:14 / curl

Package

Name
curl
Purl
pkg:deb/debian/curl?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.14.1-2
8.14.1-2+exp1
8.15.0~rc1-1exp1
8.15.0~rc2-1~exp1
8.15.0~rc3-1~exp1
8.15.0-1~bpo13+1
8.15.0-1~exp1
8.15.0-1
8.16.0~rc1-1~exp1
8.16.0~rc2-1
8.16.0~rc2-2
8.16.0~rc3-1
8.16.0-1~bpo13+1
8.16.0-1
8.16.0-1+exp1
8.16.0-2
8.16.0-3
8.16.0-4~bpo13+1
8.16.0-4
8.17.0~rc1-1~exp1
8.17.0~rc2-1
8.17.0~rc3-1
8.17.0-1
8.17.0-2
8.17.0-3
8.18.0~rc1-1+exp1
8.18.0~rc2-1
8.18.0~rc3-1
8.18.0-1~bpo13+1
8.18.0-1
8.18.0-2
8.19.0~rc1-1~exp1
8.19.0~rc2-1
8.19.0~rc2-2
8.19.0~rc3-1
8.19.0-1~bpo13+1
8.19.0-1
8.19.0-1+exp1
8.19.0-2
8.19.0-3
8.19.0-3+exp1
8.19.0-3+exp2
8.20.0~rc1-1+exp1
8.20.0~rc1-1+exp2
8.20.0~rc1-1+exp3
8.20.0~rc2-1
8.20.0~rc2-1+exp1
8.20.0~rc3-1
8.20.0~rc3-1+exp1
8.20.0-1
8.20.0-1+exp
8.20.0-2~bpo13+1
8.20.0-2
8.20.0-2+exp1
8.20.0-3
8.20.0-4
8.20.0-5~bpo13+1
8.20.0-5
8.21.0~rc1-1+exp1
8.21.0~rc2-1
8.21.0~rc2-1+exp1
8.21.0~rc3-1
8.21.0~rc3-1+exp1
8.21.0-1
8.21.0-1+exp1
8.21.0-2
8.21.0-2+exp1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-9546.json"