CVE-2026-118777: Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript
CVE-2026-118777 is a medium-severity flaw (CVSS 4.8) affecting forge. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, the forge.http client stored cookie names and paths from Set-Cookie response headers in ordinary JavaScript objects. A malicious server could use the cookie name __proto__ so that the attacker-controlled cookie path was written as a property on Object.prototype, or use inherited names such as constructor to modify Object. An empty
Why this priority
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.8 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 83%) |
| CISA exploited list | No |
| Weakness | CWE-1321 |
| Published | 2026-10-29 |
| Last modified | 2026-11-04 |
Last updated 2026-11-04 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Advisories and coverage
Research and news
- VulDB Recent Entries: CVE-2026-118777 | digitalbazaar forge up to 1.4.0 forge.http prototype pollution 2026-10-29
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-118777?
forge: upgrade to 1.4.1. Exact commands for each OS are on this page.
Is CVE-2026-118777 being exploited?
CVE-2026-118777 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-118777 affect?
CVE-2026-118777 affects forge. Severity is medium (CVSS 4.8). Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, the forge.http client stored cookie names and paths from Set-Cookie response headers in ordinary JavaScript objects. A mali
How urgent is CVE-2026-118777?
Priority 31/100. Public exploit reference; Remotely exploitable, no login, no user action
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