CVE-2026-118782
Forge: PKCS#12 MAC forgery and constant-key PBE via zero iteration count
Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, node-forge accepted a PKCS#12 MAC or PKCS#12 password-based encryption iteration count of zero or less. pki.pbe.generatePkcs12Key() then returned a constant key independent of the password and salt, allowing crafted PKCS#12 input processed by forge.pkcs12.pkcs12FromAsn1() to bypass password-based integrity checks. Predictable encryption keys and IVs also affected PKCS#12 PBE using pbeWithSHAAnd3-KeyTripleDES-CBC or pbewithSHAAnd40BitRC2-CBC, including shrouded key bags, encrypted SafeContents, and PKCS#8 ENCRYPTED PRIVATE KEY input processed independently by forge.pki.decryptPrivateKeyInfo(). PBES2/PBKDF2-encrypted content is unaffected. This issue is fixed in version 1.4.1.
Fixes and workarounds
Fix
node-forge (npm): OSV reports a fixed version 1.4.1. Check the advisory for supported release branches.
Source: OSV GHSA-jc66-7q78-782gAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| forge digitalbazaar |
< 1.4.1 (affected) | CNA: GitHub_M |
node-forgenode-forge
npm |
≥ 0; < 1.4.1 (affected, semver); OSV events: introduced 0; fixed 1.4.1Source events (semver)Other versions: unaffected |
OSV GHSA-jc66-7q78-782g |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 7.5 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | CNA: GitHub_M |
| 3.1 / 7.5 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | NVD: [email protected] |
Exploit evidence
- https://github.com/digitalbazaar/forge/security/advisories/GHSA-jc66-7q78-782g
exploit · ADP: CISA-ADP
References
- https://github.com/digitalbazaar/forge/security/advisories/GHSA-jc66-7q78-782gCNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/digitalbazaar/forge/commit/d9584aa56824972858366d5187b3d29e46bf3656CNA: GitHub_M · x_refsource_MISC
- https://github.com/digitalbazaar/forge/releases/tag/v1.4.1CNA: GitHub_M · x_refsource_MISC
- https://github.com/digitalbazaar/forge/security/advisories/GHSA-jc66-7q78-782gADP: CISA-ADP · exploit
- https://github.com/digitalbazaar/forge/commit/d9584aa56824972858366d5187b3d29e46bf3656[email protected]
- https://github.com/digitalbazaar/forge/releases/tag/v1.4.1[email protected]
- https://github.com/digitalbazaar/forge/security/advisories/GHSA-jc66-7q78-782g[email protected]
- https://github.com/digitalbazaar/forge/security/advisories/GHSA-jc66-7q78-782g134c704f-9b21-4f2e-91b3-4a467353bcc0
- https://github.com/advisories/GHSA-jc66-7q78-782gOSV / GitHub Security Advisories · advisory
- https://osv.dev/vulnerability/GHSA-jc66-7q78-782gOSV / GitHub Security Advisories · osv
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