PT-2023-4738 · Unknown+2 · Tough-Cookie+2

Kokorin Vsevolod · Published 2023-07-01 · Updated 2026-02-15 · CVE-2023-26136

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions tough-cookie versions prior to 4.1.3

Description The issue arises from improper handling of Cookies when using CookieJar in rejectPublicSuffixes=false mode, leading to Prototype Pollution. This vulnerability is related to insufficient control over the modification of dynamically defined object characteristics, which can allow a remote attacker to execute arbitrary JavaScript code.

Recommendations For versions prior to 4.1.3, update to version 4.1.3 or later to resolve the issue. As a temporary workaround, consider disabling the use of CookieJar in rejectPublicSuffixes=false mode until a patch is available. Restrict access to the CookieJar module to minimize the risk of exploitation. Avoid using the rejectPublicSuffixes parameter in the affected CookieJar mode until the issue is resolved.

Exploit

Fix

Prototype Pollution

Weakness Enumeration

CWE-1321

Related Identifiers

AZL-43684

AZL-44556

BDU:2023-05172

CVE-2023-26136

DLA-3488-1

GHSA-72XF-G2V4-QVF3

MGASA-2024-0080

MGASA-2025-0194

OESA-2023-1930

OESA-2023-1952

RHSA-2023:5484

RHSA-2023:5485

RHSA-2023:5486

Affected Products

Astra Linux

Red Os

Tough-Cookie

References · 44

• 🔥 https://github.com/salesforce/tough-cookie/issues/282 · Exploit
• 🔥 https://security.snyk.io/vuln/SNYK-JS-TOUGHCOOKIE-5672873 · Exploit
• https://github.com/salesforce/tough-cookie/commit/12d474791bb856004e858fdb1c47b7608d09cf6e · Patch
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/2UGLXZO6VIHGIITQTEUY5Q5YCAP2A4ZP · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-26136 · Security Note
• https://osv.dev/vulnerability/AZL-44556 · Vendor Advisory
• https://debian.org/lts/security/2023/dla-3488 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-26136 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-72xf-g2v4-qvf3 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2024-0080.html · Security Note
• https://advisories.mageia.org/MGASA-2025-0194.html · Security Note
• https://ubuntu.com/security/CVE-2023-26136 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/3HUE6ZR5SL73KHL7XUPAOEL6SB7HUDT2 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-26136 · Security Note
• https://osv.dev/vulnerability/OESA-2023-1930 · Vendor Advisory