UBUNTU-CVE-2026-33891

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, a Denial of Service DoS vulnerability exists in the node-forge library due to an infinite loop in the BigInteger.modInverse function inherited from the bundled jsbn library...

UBUNTU-CVE-2026-33895

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, Ed25519 signature verification accepts forged non-canonical signatures where the scalar S is not reduced modulo the group order S = L. A valid signature and its S + L variant...

CVE-2026-33891

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, a Denial of Service DoS vulnerability exists in the node-forge library due to an infinite loop in the BigInteger.modInverse function inherited from the bundled jsbn library...

CVE-2026-33895

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, Ed25519 signature verification accepts forged non-canonical signatures where the scalar S is not reduced modulo the group order S = L. A valid signature and its S + L variant...

CVE-2026-33896 Forge has a basicConstraints bypass in its certificate chain verification (RFC 5280 violation)

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, pki.verifyCertificateChain does not enforce RFC 5280 basicConstraints requirements when an intermediate certificate lacks both the basicConstraints and keyUsage extensions...

CVE-2026-33896

Technical details are not publicly available in the provided documents; no affected products, versions, or remediation are specified. Monitor for updates to confirm scope and fixes.

CVE-2026-33896 Forge has a basicConstraints bypass in its certificate chain verification (RFC 5280 violation)

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, pki.verifyCertificateChain does not enforce RFC 5280 basicConstraints requirements when an intermediate certificate lacks both the basicConstraints and keyUsage extensions...

CVE-2026-33896 Forge has a basicConstraints bypass in its certificate chain verification (RFC 5280 violation)

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, pki.verifyCertificateChain does not enforce RFC 5280 basicConstraints requirements when an intermediate certificate lacks both the basicConstraints and keyUsage extensions...

CVE-2026-33896

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, pki.verifyCertificateChain does not enforce RFC 5280 basicConstraints requirements when an intermediate certificate lacks both the basicConstraints and keyUsage extensions...

CVE-2026-33895

Summary: CVE-2026-33895 affects Forge (node-forge) prior to 1.4.0, where Ed25519 signature verification does not enforce S

CVE-2026-33895 Forge has signature forgery in Ed25519 due to missing S > L check

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, Ed25519 signature verification accepts forged non-canonical signatures where the scalar S is not reduced modulo the group order S = L. A valid signature and its S + L variant...

CVE-2026-33895

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, Ed25519 signature verification accepts forged non-canonical signatures where the scalar S is not reduced modulo the group order S = L. A valid signature and its S + L variant...

CVE-2026-33895 Forge has signature forgery in Ed25519 due to missing S > L check

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, Ed25519 signature verification accepts forged non-canonical signatures where the scalar S is not reduced modulo the group order S = L. A valid signature and its S + L variant...

CVE-2026-33894

Forge (node-forge) prior to version 1.4.0 is vulnerable to RSASSA-PKCS1 v1.5 signature forgery for low exponent keys (e = 3). The issue arises from forging signatures by injecting extra bytes inside the ASN.1 structure and by not enforcing a minimum PKCS#1 v1.5 padding length of 8 bytes, enabling...

CVE-2026-33894 Forge has signature forgery in RSA-PKCS due to ASN.1 extra field

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, RSASSA PKCS1 v1.5 signature verification accepts forged signatures for low public exponent keys e=3. Attackers can forge signatures by stuffing “garbage” bytes within the ASN...

CVE-2026-33894 Forge has signature forgery in RSA-PKCS due to ASN.1 extra field

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, RSASSA PKCS1 v1.5 signature verification accepts forged signatures for low public exponent keys e=3. Attackers can forge signatures by stuffing “garbage” bytes within the ASN...

CVE-2026-33894

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, RSASSA PKCS1 v1.5 signature verification accepts forged signatures for low public exponent keys e=3. Attackers can forge signatures by stuffing “garbage” bytes within the ASN...

CVE-2026-33891

CVE-2026-33891 affects Forge/node-forge prior to 1.4.0, where BigInteger.modInverse() can enter an infinite loop when given zero, causing a DoS with 100% CPU. The issue is resolved in 1.4.0. Related OSV entries confirm patches in downstream packages (e.g., Root’s @rootio/node-forge) with multiple...

CVE-2026-33891 Forge has Denial of Service via Infinite Loop in BigInteger.modInverse() with Zero Input

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, a Denial of Service DoS vulnerability exists in the node-forge library due to an infinite loop in the BigInteger.modInverse function inherited from the bundled jsbn library...

CVE-2026-33891 Forge has Denial of Service via Infinite Loop in BigInteger.modInverse() with Zero Input

Forge also called node-forge is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, a Denial of Service DoS vulnerability exists in the node-forge library due to an infinite loop in the BigInteger.modInverse function inherited from the bundled jsbn library...