CVE-2026-29795

{"id": "CVE-2026-29795", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.0, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 2.5}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2026-03-06T21:16:15.950", "references": [{"url": "https://github.com/stellar/rs-stellar-xdr/commit/1f840013c3e2fca0321fb844b048afa01d10dda6", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/stellar/rs-stellar-xdr/issues/499", "tags": ["Issue Tracking"], "source": "security-advisories@github.com"}, {"url": "https://github.com/stellar/rs-stellar-xdr/pull/500", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/stellar/rs-stellar-xdr/security/advisories/GHSA-x57h-xx53-v53w", "tags": ["Mitigation", "Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "stellar-xdr is a library and CLI containing types and functionality for working with Stellar XDR. Prior to version 25.0.1, StringM::from_str does not validate that the input length is within the declared maximum (MAX). Calling StringM::<N>::from_str(s) where s is longer than N bytes succeeds and returns an Ok value instead of Err(Error::LengthExceedsMax), producing a StringM that violates its length invariant. This affects any code that constructs StringM values from string input using FromStr (including str::parse), and relies on the type's maximum length constraint being enforced. An oversized StringM could propagate through serialization, validation, or other logic that assumes the invariant holds. This issue has been patched in version 25.0.1."}, {"lang": "es", "value": "stellar-xdr es una librer\u00eda y CLI que contiene tipos y funcionalidades para trabajar con Stellar XDR. Antes de la versi\u00f3n 25.0.1, StringM::from_str no valida que la longitud de entrada est\u00e9 dentro del m\u00e1ximo declarado (MAX). Llamar a StringM::::from_str(s) donde s es m\u00e1s largo que N bytes tiene \u00e9xito y devuelve un valor Ok en lugar de Err(Error::LengthExceedsMax), produciendo un StringM que viola su invariante de longitud. Esto afecta a cualquier c\u00f3digo que construye valores StringM a partir de una entrada de cadena usando FromStr (incluyendo str::parse), y que depende de que se aplique la restricci\u00f3n de longitud m\u00e1xima del tipo. Un StringM sobredimensionado podr\u00eda propagarse a trav\u00e9s de la serializaci\u00f3n, la validaci\u00f3n u otra l\u00f3gica que asume que el invariante se mantiene. Este problema ha sido parcheado en la versi\u00f3n 25.0.1."}], "lastModified": "2026-03-18T18:46:06.590", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:stellar:stellar-xdr:*:*:*:*:*:rust:*:*", "vulnerable": true, "matchCriteriaId": "7DF08E48-746E-4AAE-B4F6-E9E8DE28E1B9", "versionEndExcluding": "25.0.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}