CVE-2023-26136
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.63%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.63% probability · 85th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-1321
- Affected
- salesforce/tough-cookie
- Source
- report@snyk.io
EPSS 2.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.