CVE-2026-30910

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{"affected": [{"affectedData": [{"collectionURL": "https://cpan.org/modules", "defaultStatus": "unaffected", "packageName": "Crypt-Sodium-XS", "product": "Crypt::Sodium::XS", "programFiles": ["inc/aead.xs", "inc/sign.xs", "inc/util.xs"], "vendor": "IAMB", "versions": [{"lessThanOrEqual": "0.001000", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:iamb:crypt\\:\\:sodium\\:\\:xs:*:*:*:*:*:perl:*:*", "matchCriteriaId": "36F9F8AC-0EDB-4FA5-9E11-1F85AC15D3E8", "versionEndIncluding": "0.001001", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Crypt::Sodium::XS versions through 0.001000 for Perl has potential integer overflows.\n\nCombined aead encryption, combined signature creation, and bin2hex functions do not check that output size will be less than SIZE_MAX, which could lead to integer wraparound causing an undersized output buffer. This can cause a crash in bin2hex and encryption algorithms other than aes256gcm. For aes256gcm encryption and signatures, an undersized buffer could lead to buffer overflow.\n\nEncountering this issue is unlikely as the message length would need to be very large.\n\nFor bin2hex the input size would have to be > SIZE_MAX / 2 For aegis encryption the input size would need to be > SIZE_MAX - 32U For other encryption the input size would need to be > SIZE_MAX - 16U For signatures the input size would need to be > SIZE_MAX - 64U"}, {"lang": "es", "value": "Las versiones de Crypt::Sodium::XS hasta la 0.001000 para Perl tienen posibles desbordamientos de enteros.\n\nEl cifrado AEAD combinado, la creaci\u00f3n de firmas combinada y las funciones bin2hex no verifican que el tama\u00f1o de salida sea menor que SIZE_MAX, lo que podr\u00eda llevar a un 'integer wraparound' causando un b\u00fafer de salida de tama\u00f1o insuficiente. Esto puede causar un fallo en bin2hex y en algoritmos de cifrado distintos de aes256gcm. Para el cifrado aes256gcm y las firmas, un b\u00fafer de tama\u00f1o insuficiente podr\u00eda llevar a un desbordamiento de b\u00fafer.\n\nEs poco probable encontrar este problema, ya que la longitud del mensaje tendr\u00eda que ser muy grande.\n\nPara bin2hex, el tama\u00f1o de entrada tendr\u00eda que ser &gt; SIZE_MAX / 2\nPara el cifrado aegis, el tama\u00f1o de entrada tendr\u00eda que ser &gt; SIZE_MAX - 32U\nPara otros cifrados, el tama\u00f1o de entrada tendr\u00eda que ser &gt; SIZE_MAX - 16U\nPara las firmas, el tama\u00f1o de entrada tendr\u00eda que ser &gt; SIZE_MAX - 64U"}], "id": "CVE-2026-30910", "lastModified": "2026-06-17T10:33:07.960", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-30910", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-10T13:42:36.397541Z", "version": "2.0.3"}}]}, "published": "2026-03-08T02:16:00.620", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "tags": ["Release Notes"], "url": "https://metacpan.org/release/IAMB/Crypt-Sodium-XS-0.001001/changes"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2026/03/08/2"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,0.001000]"}}], "enrichment": {"confidence": 82.0, "confidence_source": "matching", "scores": [{"score": 82.0, "source": "matching"}]}, "original": {"product": "Crypt::Sodium::XS", "source": "cna", "vendor": "IAMB"}, "product": "crypt::sodium::xs", "vendor": "perl"}], "analysis": {"en": {"generated_at": "2026-04-16T10:43:08.496403+00:00", "value": {"mitigation_remediation": ["Upgrade Crypt::Sodium::XS to version 0.001001 or later.", "Validate input lengths to be well below SIZE_MAX before invoking the vulnerable functions, effectively preventing the integer wraparound.", "Avoid using combined aead encryption, combined signature creation, or bin2hex on data that could reach near SIZE_MAX bounds, and consider alternative libraries for cryptographic operations that enforce safe bounds."], "summary": {"action": "Apply Patch", "impact": "Integer Overflow / Buffer Overflow"}, "threat_synthesis": {"affected_systems": "The vulnerability affects the IAMB Crypt::Sodium::XS Perl module versions 0.000000 through 0.001000. Users deploying these versions of the module in any Perl framework, including web applications, command\u2011line tools, or services that rely on the module for cryptographic operations, are impacted. The provided CPE indicates the product's presence on Perl.", "description_and_impact": "Crypt::Sodium::XS up to 0.001000 allows integer overflows in functions such as combined aead encryption, signature creation, and bin2hex. The lack of bounds checking can cause the calculation of output sizes to wrap around, producing undersized buffers. For most algorithms this results in a crash, but for AES-256-GCM encryption and signatures the buffer underflow could lead to a buffer overflow that may corrupt memory or allow control flow hijack.", "risk_and_exploitability": "The CVSS score of 7.5 indicates high severity. EPSS is below 1\u202f%, suggesting that exploitation is unlikely in the wild, and it is not listed in the CISA KEV catalog. Attackers would need to supply unusually large inputs to trigger the overflow, which may be infeasible in many contexts. Nonetheless, if an attacker controls the data passed to these functions, there is a non\u2011zero risk of memory corruption and potentially code execution."}}}}, "created": "2026-03-09T10:03:43.301184+00:00", "updated": "2026-04-16T10:45:26.015812+00:00", "vendors": ["perl", "perl$PRODUCT$crypt::sodium::xs"]}