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[USN-9080-1] tough-cookie vulnerability

Posted on 13 November 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-9080-1
November 12, 2026

node-tough-cookie vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

tough-cookie could be made to modify application data if it received
specially crafted cookies.

Software Description:
- node-tough-cookie: RFC6265 Cookies and Cookie Jar for node.js

Details:

It was discovered that tough-cookie incorrectly handled cookies when the
rejectPublicSuffixes option was disabled, leading to prototype pollution.
An attacker could possibly use this issue to modify the behavior of
applications using tough-cookie, resulting in a denial of service, or
another unspecified impact.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS
node-tough-cookie 4.0.0-2ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 20.04 LTS
node-tough-cookie 3.0.0-1ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 18.04 LTS
node-tough-cookie 2.3.2+dfsg-1ubuntu0.1~esm1
Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-9080-1
CVE-2023-26136

--===============5533172795600513622==Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature

 

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