Home/CVE/Versions of the package tough-cookie before 4.1.3 are vulnerable to Prototype Pollution due to improper handling of Cook
CVE

CVE-2023-26136

Versions of the package tough-cookie before 4.1.3 are vulnerable to Prototype Pollution due to improper handling of Cook

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.

MEDIUM · CVSS 6.5 EPSS 0.06248
Schedule remediation
  • EPSS percentile: top 9% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
▤

Affected Products & Versions

1
salesforce tough-cookie< 4.1.3
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm tough-cookie MODERATE fixed in 4.1.3
⚠

Public Exploits & PoCs

2
pocgithub.com · issues/282github.com
pocsecurity.snyk.io · SNYK-JS-TOUGHCOOKIE-5672873security.snyk.io
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · report@snyk.io
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD01 Jul 2023 · 05:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

15
msrcCVE-2023-26136
rhsaRHSA-2025:0082Moderate
rhsaRHSA-2025:0164Low
rhsaRHSA-2024:8676Important
rhsaRHSA-2025:0323Moderate
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/salesforce/tough-cookie/commit/12d474791bb856004e858fdb1c47b7608d09cf6ePatch
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/
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