Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/50299?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/50299?format=api", "vulnerability_id": "VCID-a3b5-pwyh-yugv", "summary": "Craft CMS Race condition in Token Service potentially allows for token usage greater than the token limit\nA Time-of-Check-Time-of-Use (TOCTOU) race condition exists in Craft CMS’s token validation service for tokens that explicitly set a limited usage. The `getTokenRoute()` method reads a token’s usage count, checks if it’s within limits, then updates the database in separate non-atomic operations. By sending concurrent requests, an attacker can use a single-use impersonation token multiple times before the database update completes.\n\nTo make this work, an attacker needs to obtain a valid user account impersonation URL with a non-expired token via some other means and exploit a race condition while bypassing any rate-limiting rules in place.\n\nFor this to be a privilege escalation, the impersonation URL must include a token for a user account with more permissions than the current user.", "aliases": [ { "alias": "CVE-2026-27128" }, { "alias": "GHSA-6fx5-5cw5-4897" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/74189?format=api", "purl": "pkg:composer/craftcms/cms@4.16.19", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/craftcms/cms@4.16.19" }, { "url": "http://public2.vulnerablecode.io/api/packages/74188?format=api", "purl": "pkg:composer/craftcms/cms@5.8.23", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/craftcms/cms@5.8.23" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/74190?format=api", "purl": "pkg:composer/craftcms/cms@4.5.0-RC1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-39ct-cg7w-kyb6" }, { "vulnerability": "VCID-a3b5-pwyh-yugv" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/craftcms/cms@4.5.0-RC1" }, { "url": "http://public2.vulnerablecode.io/api/packages/73168?format=api", "purl": "pkg:composer/craftcms/cms@5.0.0-RC1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1468-4fdx-kbfr" }, { "vulnerability": "VCID-1mb5-28xp-ckd2" }, { "vulnerability": "VCID-39ct-cg7w-kyb6" }, { "vulnerability": "VCID-4wkr-jx1w-77hn" }, { "vulnerability": "VCID-5mnd-qvaq-k3am" }, { "vulnerability": "VCID-5q5g-jrxm-eyhe" }, { "vulnerability": "VCID-7y4f-ef7t-47eb" }, { "vulnerability": "VCID-8u2j-17a4-q7eh" }, { "vulnerability": "VCID-9enr-b6zd-mbh8" }, { "vulnerability": "VCID-a3b5-pwyh-yugv" }, { "vulnerability": "VCID-akrv-yqnf-1kg8" }, { "vulnerability": "VCID-azr5-12f8-hfbm" }, { "vulnerability": "VCID-cys8-jnmu-77ec" }, { "vulnerability": "VCID-esma-wxje-eqh3" }, { "vulnerability": "VCID-fpea-e48p-kfbn" }, { "vulnerability": "VCID-hkp9-3hzv-quhk" }, { "vulnerability": "VCID-hyct-5gap-7kdu" }, { "vulnerability": "VCID-jeyh-3jxd-z3g6" }, { "vulnerability": "VCID-jxz8-g6fq-dubw" }, { "vulnerability": "VCID-kbrc-85av-nfcn" }, { "vulnerability": "VCID-m5rf-usae-yfb7" }, { "vulnerability": "VCID-pgm4-svq8-tfc5" }, { "vulnerability": "VCID-ppet-ruae-1kav" }, { "vulnerability": "VCID-qywv-vf4r-8bh9" }, { "vulnerability": "VCID-rb7c-3nkc-gkeg" }, { "vulnerability": "VCID-twuy-wzb7-k7g3" }, { "vulnerability": "VCID-vasz-rnn1-67ev" }, { "vulnerability": "VCID-vvhc-rnpr-ubey" }, { "vulnerability": "VCID-w9yn-1573-hyau" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:composer/craftcms/cms@5.0.0-RC1" } ], "references": [ { "reference_url": "https://github.com/craftcms/cms", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/craftcms/cms" }, { "reference_url": "https://github.com/craftcms/cms/commit/3e4afe18279951c024c64896aa2b93cda6d95fdf", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/craftcms/cms/commit/3e4afe18279951c024c64896aa2b93cda6d95fdf" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27128", "reference_id": "CVE-2026-27128", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27128" }, { "reference_url": "https://github.com/advisories/GHSA-6fx5-5cw5-4897", "reference_id": "GHSA-6fx5-5cw5-4897", "reference_type": "", "scores": [], "url": "https://github.com/advisories/GHSA-6fx5-5cw5-4897" }, { "reference_url": "https://github.com/craftcms/cms/security/advisories/GHSA-6fx5-5cw5-4897", "reference_id": "GHSA-6fx5-5cw5-4897", "reference_type": "", "scores": [], "url": "https://github.com/craftcms/cms/security/advisories/GHSA-6fx5-5cw5-4897" } ], "weaknesses": [ { "cwe_id": 367, "name": "Time-of-check Time-of-use (TOCTOU) Race Condition", "description": "The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state." }, { "cwe_id": 937, "name": "OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013." }, { "cwe_id": 1035, "name": "OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017." } ], "exploits": [], "severity_range_score": null, "exploitability": null, "weighted_severity": null, "risk_score": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-a3b5-pwyh-yugv" }