DEBIAN-CVE-2026-126077

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Source
https://security-tracker.debian.org/tracker/CVE-2026-126077
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-126077.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-126077
Upstream
Published
2026-11-10T21:19:26Z
Modified
2026-11-11T11:00:05Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

Action Pack is a framework for handling and responding to web requests. Prior to 8.1.4.1 and 8.0.5.2, When ActionDispatch::Cookies reads a signed or encrypted cookie that was written under a rotated secret (config.action_dispatch.cookies_rotations) or in the format that a :hybrid cookie serializer migrates from, it writes the cookie back to the response in the current format, and that write ignores request.session_options[:skip]. ActiveStorage::DisableSession relies on that option to keep the session cookie off the public, immutable responses of the Active Storage proxy controllers, but those controllers still load the session, so a request carrying an old-format session cookie could receive the rewritten session cookie in Set-Cookie on a cacheable response. A shared cache that stores such a response together with its Set-Cookie header could then serve one user's session to later requesters of the same URL, or serve an attacker's session to other users. Applications are affected when they serve Active Storage files through the proxy controllers, have a cookie rotation or a :hybrid serializer migration configured, and run behind a cache that stores Set-Cookie on public responses. This is a path around the fix for CVE-2024-26144. This issue is fixed in versions 8.1.4.1 and 8.0.5.2.

References

Affected packages

Debian:12 / rails

Package

Name
rails
Purl
pkg:deb/debian/rails?arch=source&distro=bookworm

Affected ranges

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

Affected versions

2:6.*
2:6.1.7.3+dfsg-1
2:6.1.7.3+dfsg-2~deb12u1
2:6.1.7.3+dfsg-2
2:6.1.7.3+dfsg-3
2:6.1.7.3+dfsg-4
2:6.1.7.3+dfsg-5
2:6.1.7.3+dfsg-6
2:6.1.7.3+dfsg-7~exp1
2:6.1.7.3+dfsg-7
2:6.1.7.3+dfsg-8
2:6.1.7.3+dfsg-9
2:6.1.7.3+dfsg-10
2:6.1.7.3+dfsg-11
2:6.1.7.3+dfsg-12
2:6.1.7.3+dfsg-13
2:6.1.7.10+dfsg-1~deb12u1
2:6.1.7.10+dfsg-1~deb12u2
2:6.1.7.10+dfsg-1~deb12u3
2:7.*
2:7.2.2.1+dfsg-1~exp1
2:7.2.2.1+dfsg-1~exp2
2:7.2.2.1+dfsg-1~exp3
2:7.2.2.1+dfsg-1~exp4
2:7.2.2.1+dfsg-1~exp6
2:7.2.2.1+dfsg-1
2:7.2.2.1+dfsg-2
2:7.2.2.1+dfsg-3
2:7.2.2.1+dfsg-4
2:7.2.2.1+dfsg-5
2:7.2.2.1+dfsg-6
2:7.2.2.1+dfsg-7
2:7.2.2.2+dfsg-1
2:7.2.2.2+dfsg-2~deb13u1
2:7.2.2.2+dfsg-2~deb13u2
2:7.2.2.2+dfsg-2
2:7.2.3+dfsg-1
2:7.2.3+dfsg-2
2:7.2.3+dfsg-3
2:7.2.3.1+dfsg-1
2:7.2.3.2+dfsg-1
2:7.2.3.2+dfsg-2
2:7.2.3.2+dfsg-3
2:7.2.4+dfsg-1
2:7.2.4+dfsg-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-126077.json"

Debian:13 / rails

Package

Name
rails
Purl
pkg:deb/debian/rails?arch=source&distro=trixie

Affected ranges

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

Affected versions

2:7.*
2:7.2.2.1+dfsg-7
2:7.2.2.2+dfsg-1
2:7.2.2.2+dfsg-2~deb13u1
2:7.2.2.2+dfsg-2~deb13u2
2:7.2.2.2+dfsg-2
2:7.2.3+dfsg-1
2:7.2.3+dfsg-2
2:7.2.3+dfsg-3
2:7.2.3.1+dfsg-1
2:7.2.3.2+dfsg-1
2:7.2.3.2+dfsg-2
2:7.2.3.2+dfsg-3
2:7.2.4+dfsg-1
2:7.2.4+dfsg-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-126077.json"

Debian:14 / rails

Package

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

Affected ranges

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

Affected versions

2:7.*
2:7.2.2.1+dfsg-7
2:7.2.2.2+dfsg-1
2:7.2.2.2+dfsg-2~deb13u1
2:7.2.2.2+dfsg-2~deb13u2
2:7.2.2.2+dfsg-2
2:7.2.3+dfsg-1
2:7.2.3+dfsg-2
2:7.2.3+dfsg-3
2:7.2.3.1+dfsg-1
2:7.2.3.2+dfsg-1
2:7.2.3.2+dfsg-2
2:7.2.3.2+dfsg-3
2:7.2.4+dfsg-1
2:7.2.4+dfsg-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-126077.json"