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Forge: Prototype Pollution in forge.http cookie handling via a malicious Set-Cookie

No KEV listing collectedCVSS 4.8Fix not stated

Assessment

Severity
Moderate
CVSS base score
4.8
Impact
Not stated
Exploitation detected
Unknown: not stated by MSRC
Exploitability
Not assessed
Publicly disclosed
Unknown: not stated by MSRC
EPSS · 30-day forecast
No EPSS score collected
Customer action
Required: follow the MSRC remediation guidance
More details
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Public detection template
No Nuclei template is listed in the current collected catalog
Component
Mariner
Weakness
CWE-1321: Improperly Controlled Modification of Object Prototype Attributes
Issued by
GitHub_M
Published
3 Nov 2026 · October 2026
Last revised
3 Nov 2026
CVSS 3.1 base metricsRed raises the risk · green lowers it
Attack vector
NetworkAV:N
Attack complexity
HighAC:H
Privileges required
NonePR:N
User interaction
NoneUI:N
Scope
UnchangedS:U
Confidentiality
NoneC:N
Integrity
LowI:L
Availability
LowA:L

Updates that fix it

0 KBs

No KB listed

No KB update is listed in the collected MSRC record. Check the MSRC advisory for product releases and other remedies.

Affected products

Open Source Software
1 affected product
  • azl3 python-tensorboard 2.16.2-6 on Azure Linux 3.0

What changed

  1. Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  2. Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  3. Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  4. Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
Page history

Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.

Cite this version
Field-level log (16)

Up to 100 recent field edits are shown; older edits may be outside retention.

  1. 13 Nov 2026 · 12:10:20 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  2. 13 Nov 2026 · 12:10:20 UTC Source coverage: public-exploit-codeIncomplete → Current
  3. 13 Nov 2026 · 12:10:20 UTC Source coverage: first-epssIncomplete → Current
  4. 13 Nov 2026 · 12:10:20 UTC Source coverage: msrc-cvrfIncomplete → Current
  5. 13 Nov 2026 · 11:07:20 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  6. 13 Nov 2026 · 11:07:20 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  7. 13 Nov 2026 · 11:07:20 UTC Source coverage: first-epssCurrent → Incomplete
  8. 13 Nov 2026 · 11:07:20 UTC Source coverage: msrc-cvrfCurrent → Incomplete
  9. 6 Nov 2026 · 17:32:22 UTC Public detection templateUnknown: detection-template evidence is incomplete or retained → No Nuclei template listed
  10. 6 Nov 2026 · 17:32:22 UTC Source coverage: public-exploit-codeIncomplete → Current
  11. 6 Nov 2026 · 17:32:22 UTC Source coverage: first-epssIncomplete → Current
  12. 6 Nov 2026 · 17:32:22 UTC Source coverage: msrc-cvrfIncomplete → Current
  13. 6 Nov 2026 · 16:31:02 UTC Public detection templateNo Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
  14. 6 Nov 2026 · 16:31:02 UTC Source coverage: public-exploit-codeCurrent → Incomplete
  15. 6 Nov 2026 · 16:31:02 UTC Source coverage: first-epssCurrent → Incomplete
  16. 6 Nov 2026 · 16:31:02 UTC Source coverage: msrc-cvrfCurrent → Incomplete

Explore global source statements, affected packages and advisory history for CVE-2026-118777. The catalog has a separate collection scope from Microsoft release records.

More advisories, affected versions and source history

Exploitation and risk

Source status

CISA KEV lists vulnerabilities known to be exploited. FIRST EPSS estimates the likelihood of exploitation in the next 30 days. An unavailable score does not mean zero risk.

Which CVEs have scores here?

This view includes predictions for CVE identifiers explicitly listed in public NuGet advisories. Microsoft release pages have their own prediction coverage. Check source status for the scope and latest checks.

No exploitation or prediction data is available here for these CVEs. This does not mean they are safe or unlikely to be exploited.

Risk history

Compare earlier KEV listings and EPSS scores. Advisory wording and affected versions have a separate history.

When does an EPSS score appear as a change?

A prediction change is reported when EPSS rises from below 10% to 10% or higher. Every daily score change from the last 30 days stays in this history. Before that, it keeps KEV changes and moves between EPSS bands (0.1%, 1%, 5%, 10%, 20%, 50% and 90%).

Advisory history

13 saved versions

See how the publisher's advisory changed over time. Each link opens the version saved at that time. The publisher's update date can differ from the date shown here.

How advisory history works

Each link identifies one complete publisher record. History can include advisories that previously shared an identifier; an identifier removed by a publisher no longer establishes a current relationship. A historical link shows only that record and earlier saved versions. Failed checks and unchanged reads do not create new versions.

14 Nov 2026 06:08:00 UTC

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…

euvd · EUVD-2026-113335 · Published

12 Nov 2026 05:59:42 UTC

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…

euvd · EUVD-2026-113335 · Published

10 Nov 2026 02:13:32 UTC

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…

euvd · EUVD-2026-113335 · Published

8 Nov 2026 02:02:05 UTC

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…

euvd · EUVD-2026-113335 · Published

6 Nov 2026 01:44:32 UTC

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…

euvd · EUVD-2026-113335 · Published

6 Nov 2026 01:43:49 UTC

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…

nvd · CVE-2026-118777 · Published

4 Nov 2026 00:59:43 UTC

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…

euvd · EUVD-2026-113335 · Published

1 Nov 2026 23:59:43 UTC

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…

euvd · EUVD-2026-113335 · Published

30 Oct 2026 23:48:20 UTC

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…

euvd · EUVD-2026-113335 · Published

30 Oct 2026 23:47:40 UTC

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…

nvd · CVE-2026-118777 · Published

30 Oct 2026 23:45:44 UTC

Forge: Prototype Pollution in forge.http cookie handling via a malicious Set-Cookie

osv · GHSA-6wvx-3r32-xmcg · Published

30 Oct 2026 18:45:26 UTC

Forge: Prototype Pollution in forge.http cookie handling via a malicious Set-Cookie

cve-program · CVE-2026-118777 · Published

29 Oct 2026 19:28:49 UTC

Forge: Prototype Pollution in forge.http cookie handling via a malicious Set-Cookie

cve-program · CVE-2026-118777 · Published

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 15 Nov 22:09 UTC · 274 of 275 readable · 268 fully read · documentation 469/469 current