CVE-2023-26136

Name: CVE-2023-26136
Creator: NVD / NIST
Published: 2023-07-01T05:15:16.103+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.14%

Last modified Jun 17, 2026

CVE-2023-26136 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Versions of the package tough-cookie before 4.1.3 are vulnerable to Prototype Pollution due to improper handling of Cookies when using CookieJar in rejectPublicSuffixes=false mode. This issue arises from the manner in which the objects are initialized.. EPSS estimates a 2.14% chance of exploitation in the next 30 days.

Description

Versions of the package tough-cookie before 4.1.3 are vulnerable to Prototype Pollution due to improper handling of Cookies when using CookieJar in rejectPublicSuffixes=false mode. This issue arises from the manner in which the objects are initialized.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.14%

79.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Salesforce	Tough-Cookie	< 4.1.3

References

https://github.com/salesforce/tough-cookie/commit/12d474791bb856004e858fdb1c47b7608d09cf6ePatch
https://github.com/salesforce/tough-cookie/issues/282Exploit, Issue Tracking, Vendor Advisory
https://github.com/salesforce/tough-cookie/releases/tag/v4.1.3Release Notes
https://lists.debian.org/debian-lts-announce/2023/07/msg00010.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3HUE6ZR5SL73KHL7XUPAOEL6SB7HUDT2/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6PVVPNSAGSDS63HQ74PJ7MZ3MU5IYNVZ/
https://security.netapp.com/advisory/ntap-20240621-0006/
https://security.snyk.io/vuln/SNYK-JS-TOUGHCOOKIE-5672873Exploit, Technical Description, Third Party Advisory
https://github.com/salesforce/tough-cookie/commit/12d474791bb856004e858fdb1c47b7608d09cf6ePatch
https://github.com/salesforce/tough-cookie/issues/282Exploit, Issue Tracking, Vendor Advisory
https://github.com/salesforce/tough-cookie/releases/tag/v4.1.3Release Notes
https://lists.debian.org/debian-lts-announce/2023/07/msg00010.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3HUE6ZR5SL73KHL7XUPAOEL6SB7HUDT2/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6PVVPNSAGSDS63HQ74PJ7MZ3MU5IYNVZ/
https://security.netapp.com/advisory/ntap-20240621-0006/
https://security.snyk.io/vuln/SNYK-JS-TOUGHCOOKIE-5672873Exploit, Technical Description, Third Party Advisory

Timeline

Published: Jul 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-26136?

How severe is CVE-2023-26136?

CVE-2023-26136 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.14% probability of exploitation in the next 30 days.

How do I fix CVE-2023-26136?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-26136?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST