{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-33895", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-24T15:41:47.490Z", "datePublished": "2026-03-27T20:47:54.492Z", "dateUpdated": "2026-07-15T01:05:29.091Z" }, "containers": { "cna": { "title": "Forge has signature forgery in Ed25519 due to missing S > L check", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-347", "lang": "en", "description": "CWE-347: Improper Verification of Cryptographic Signature", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1" } } ], "references": [ { "name": "https://github.com/digitalbazaar/forge/security/advisories/GHSA-q67f-28xg-22rw", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/digitalbazaar/forge/security/advisories/GHSA-q67f-28xg-22rw" }, { "name": "https://github.com/digitalbazaar/forge/commit/bdecf11571c9f1a487cc0fe72fe78ff6dfa96b85", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/digitalbazaar/forge/commit/bdecf11571c9f1a487cc0fe72fe78ff6dfa96b85" }, { "name": "https://datatracker.ietf.org/doc/html/rfc8032#section-8.4", "tags": [ "x_refsource_MISC" ], "url": "https://datatracker.ietf.org/doc/html/rfc8032#section-8.4" } ], "affected": [ { "vendor": "digitalbazaar", "product": "forge", "versions": [ { "version": "< 1.4.0", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-27T20:47:54.492Z" }, "descriptions": [ { "lang": "en", "value": "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 both verify in forge, while Node.js `crypto.verify` (OpenSSL-backed) rejects the `S + L` variant, as defined by the specification. This class of signature malleability has been exploited in practice to bypass authentication and authorization logic (see CVE-2026-25793, CVE-2022-35961). Applications relying on signature uniqueness (i.e., dedup by signature bytes, replay tracking, signed-object canonicalization checks) may be bypassed. 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"cpes": [ "cpe:/a:redhat:jboss_fuse:7" ], "defaultStatus": "affected", "packageName": "io.syndesis-syndesis-parent", "product": "Red Hat Fuse 7", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:jboss_enterprise_bpms_platform:7" ], "defaultStatus": "unaffected", "packageName": "org.uberfire-uberfire-parent", "product": "Red Hat Process Automation 7", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:quay:3" ], "defaultStatus": "affected", "packageName": "quay/quay-rhel8", "product": "Red Hat Quay 3", "vendor": "Red Hat" } ], "datePublic": "2026-03-27T20:47:54.492Z", "descriptions": [ { "lang": "en", "value": "A flaw was found in Forge (also called `node-forge`), a JavaScript library used for Transport Layer Security (TLS). The library's Ed25519 signature verification process does not correctly validate cryptographic signatures, allowing forged non-canonical signatures to be accepted. A remote attacker could exploit this signature malleability to bypass authentication and authorization logic. This vulnerability can also circumvent security checks in applications that rely on the uniqueness of cryptographic signatures for functions such as deduplication or preventing replay attacks." } ], "metrics": [ { "other": { "content": { "namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1" }, "format": "CVSS" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-347", "description": "Improper Verification of Cryptographic Signature", "lang": "en", "type": "CWE" } ] } ], "references": [ { "tags": [ "vdb-entry", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/security/cve/CVE-2026-33895" }, { "name": "RHBZ#2452457", "tags": [ "issue-tracking", "x_refsource_REDHAT" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2452457" }, { "tags": [ "x_sadp-csaf-vex" ], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33895.json" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:24761" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:34342" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:9742" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:13826" } ], "solutions": [ { "lang": "en", "value": "RHSA-2026:24761: Red Hat Ansible Automation Platform 2.5 for RHEL 8, Red Hat Ansible Automation Platform 2.5 for RHEL 9" }, { "lang": "en", "value": "RHSA-2026:34342: Cluster Observability Operator 1.5.0" }, { "lang": "en", "value": "RHSA-2026:9742: Red Hat Developer Hub 1.8" }, { "lang": "en", "value": "RHSA-2026:13826: Red Hat Developer Hub 1.9" } ], "timeline": [ { "lang": "en", "time": "2026-03-27T21:02:18.484Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-03-27T20:47:54.492Z", "value": "Made public." } ], "title": "node-forge: Forge: Authentication bypass via forged Ed25519 cryptographic signatures", "workarounds": [ { "lang": "en", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability." } ], "x_adpType": "supplier", "x_generator": { "engine": "sadp-cli 1.0.0" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-07-15T01:05:29.091Z" } } ] } }