{"data":{"id":"f123ad97-6c35-4b62-a0f5-8c1aef069c49","title":"CVE-2026-26013: LangChain is a framework for building agents and LLM-powered applications. Prior to 1.2.11, the…","summary":"CVE-2026-26013 affects LangChain before 1.2.11. The ChatOpenAI.get_num_tokens_from_messages() method fetches arbitrary image_url values without validation when computing token counts for vision-enabled models, so attackers can supply malicious image URLs in user input. This is classified as CWE-918, Server-Side Request Forgery (SSRF); NVD has not yet provided an assessment.","solution":"Fixed in 1.2.11","labels":["security"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-26013","publishedAt":"2026-02-11T03:17:00.453Z","cveId":"CVE-2026-26013","cweIds":["CWE-918"],"cvssScore":"3.7","cvssSeverity":"low","severity":"low","attackType":["other"],"issueType":"vulnerability","affectedPackages":["langchain-core@< 1.2.11 (fixed: 1.2.11)"],"affectedPackageNames":["langchain-core"],"affectedPackageRefs":["pypi:langchain-core"],"affectedVendors":["LangChain"],"affectedVendorsRaw":["LangChain","ChatOpenAI"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":"LangChain SSRF through image URLs in ChatOpenAI token counting","headlinePromptVersion":"h1","cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0.0043,"epssCheckedAt":"2026-11-04T00:12:27.430Z","kevDateAdded":null,"advisoryAliases":["GHSA-2g6r-c272-w58r"],"affectedPackagesSource":"ghsa","affectedPackagesCheckedAt":"2026-10-10T03:50:53.822Z","patchAvailable":true,"disclosureDate":null,"fixReleasedAt":"2026-02-10T20:35:26.698Z","daysToFix":-1,"fixCheckedAt":"2026-10-29T21:41:41.036Z","capecIds":["CAPEC-664"],"crossRefCount":0,"attackSophistication":"moderate","impactType":["confidentiality"],"aiComponentTargeted":"api","llmSpecific":true,"classifierConfidence":0.9,"researchCategory":null,"atlasIds":null,"fixes":[{"ecosystem":"pypi","name":"langchain-core","fixedVersion":"1.2.11","matchedVersion":"1.2.11","fixReleasedAt":"2026-02-10T20:35:26.698Z","daysToFix":-1,"match":"ecosystem","source":"tracked","status":"found","checkedAt":"2026-10-29T21:41:40.886Z"}]}}