{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-22795", "assignerOrgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5", "state": "PUBLISHED", "assignerShortName": "openssl", "dateReserved": "2026-01-09T18:54:13.570Z", "datePublished": "2026-01-27T16:01:27.320Z", "dateUpdated": "2026-01-27T16:01:27.320Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "OpenSSL", "vendor": "OpenSSL", "versions": [{"lessThan": "3.6.1", "status": "affected", "version": "3.6.0", "versionType": "semver"}, {"lessThan": "3.5.5", "status": "affected", "version": "3.5.0", "versionType": "semver"}, {"lessThan": "3.4.4", "status": "affected", "version": "3.4.0", "versionType": "semver"}, {"lessThan": "3.3.6", "status": "affected", "version": "3.3.0", "versionType": "semver"}, {"lessThan": "3.0.19", "status": "affected", "version": "3.0.0", "versionType": "semver"}, {"lessThan": "1.1.1ze", "status": "affected", "version": "1.1.1", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "reporter", "value": "Luigino Camastra (Aisle Research)"}, {"lang": "en", "type": "remediation developer", "value": "Bob Beck"}], "datePublic": "2026-01-27T14:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Issue summary: An invalid or NULL pointer dereference can happen in<br>an application processing a malformed PKCS#12 file.<br><br>Impact summary: An application processing a malformed PKCS#12 file can be<br>caused to dereference an invalid or NULL pointer on memory read, resulting<br>in a Denial of Service.<br><br>A type confusion vulnerability exists in PKCS#12 parsing code where<br>an ASN1_TYPE union member is accessed without first validating the type,<br>causing an invalid pointer read.<br><br>The location is constrained to a 1-byte address space, meaning any<br>attempted pointer manipulation can only target addresses between 0x00 and 0xFF.<br>This range corresponds to the zero page, which is unmapped on most modern<br>operating systems and will reliably result in a crash, leading only to a<br>Denial of Service. Exploiting this issue also requires a user or application<br>to process a maliciously crafted PKCS#12 file. It is uncommon to accept<br>untrusted PKCS#12 files in applications as they are usually used to store<br>private keys which are trusted by definition. For these reasons, the issue<br>was assessed as Low severity.<br><br>The FIPS modules in 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,<br>as the PKCS12 implementation is outside the OpenSSL FIPS module boundary.<br><br>OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.<br><br>OpenSSL 1.0.2 is not affected by this issue."}], "value": "Issue summary: An invalid or NULL pointer dereference can happen in\nan application processing a malformed PKCS#12 file.\n\nImpact summary: An application processing a malformed PKCS#12 file can be\ncaused to dereference an invalid or NULL pointer on memory read, resulting\nin a Denial of Service.\n\nA type confusion vulnerability exists in PKCS#12 parsing code where\nan ASN1_TYPE union member is accessed without first validating the type,\ncausing an invalid pointer read.\n\nThe location is constrained to a 1-byte address space, meaning any\nattempted pointer manipulation can only target addresses between 0x00 and 0xFF.\nThis range corresponds to the zero page, which is unmapped on most modern\noperating systems and will reliably result in a crash, leading only to a\nDenial of Service. Exploiting this issue also requires a user or application\nto process a maliciously crafted PKCS#12 file. It is uncommon to accept\nuntrusted PKCS#12 files in applications as they are usually used to store\nprivate keys which are trusted by definition. For these reasons, the issue\nwas assessed as Low severity.\n\nThe FIPS modules in 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,\nas the PKCS12 implementation is outside the OpenSSL FIPS module boundary.\n\nOpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.\n\nOpenSSL 1.0.2 is not affected by this issue."}], "metrics": [{"format": "other", "other": {"content": {"text": "Low"}, "type": "https://openssl-library.org/policies/general/security-policy/"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-754", "description": "CWE-754 Improper Check for Unusual or Exceptional Conditions", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "3a12439a-ef3a-4c79-92e6-6081a721f1e5", "shortName": "openssl", "dateUpdated": "2026-01-27T16:01:27.320Z"}, "references": [{"name": "OpenSSL Advisory", "tags": ["vendor-advisory"], "url": "https://openssl-library.org/news/secadv/20260127.txt"}, {"name": "3.6.1 git commit", "tags": ["patch"], "url": "https://github.com/openssl/openssl/commit/ef2fb66ec571564d64d1c74a12e388a2a54d05d2"}, {"name": "3.5.5 git commit", "tags": ["patch"], "url": "https://github.com/openssl/openssl/commit/2502e7b7d4c0cf4f972a881641fe09edc67aeec4"}, {"name": "3.4.4 git commit", "tags": ["patch"], "url": "https://github.com/openssl/openssl/commit/7bbca05be55b129651d9df4bdb92becc45002c12"}, {"name": "3.3.6 git commit", "tags": ["patch"], "url": "https://github.com/openssl/openssl/commit/eeee3cbd4d682095ed431052f00403004596373e"}, {"name": "3.0.19 git commit", "tags": ["patch"], "url": "https://github.com/openssl/openssl/commit/572844beca95068394c916626a6d3a490f831a49"}], "source": {"discovery": "UNKNOWN"}, "title": "Missing ASN1_TYPE validation in PKCS#12 parsing", "x_generator": {"engine": "Vulnogram 0.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Issue summary: An invalid or NULL pointer dereference can happen in\nan application processing a malformed PKCS#12 file.\n\nImpact summary: An application processing a malformed PKCS#12 file can be\ncaused to dereference an invalid or NULL pointer on memory read, resulting\nin a Denial of Service.\n\nA type confusion vulnerability exists in PKCS#12 parsing code where\nan ASN1_TYPE union member is accessed without first validating the type,\ncausing an invalid pointer read.\n\nThe location is constrained to a 1-byte address space, meaning any\nattempted pointer manipulation can only target addresses between 0x00 and 0xFF.\nThis range corresponds to the zero page, which is unmapped on most modern\noperating systems and will reliably result in a crash, leading only to a\nDenial of Service. Exploiting this issue also requires a user or application\nto process a maliciously crafted PKCS#12 file. It is uncommon to accept\nuntrusted PKCS#12 files in applications as they are usually used to store\nprivate keys which are trusted by definition. For these reasons, the issue\nwas assessed as Low severity.\n\nThe FIPS modules in 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,\nas the PKCS12 implementation is outside the OpenSSL FIPS module boundary.\n\nOpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.\n\nOpenSSL 1.0.2 is not affected by this issue."}], "id": "CVE-2026-22795", "lastModified": "2026-01-27T16:16:35.430", "metrics": {}, "published": "2026-01-27T16:16:35.430", "references": [{"source": "openssl-security@openssl.org", "url": "https://github.com/openssl/openssl/commit/2502e7b7d4c0cf4f972a881641fe09edc67aeec4"}, {"source": "openssl-security@openssl.org", "url": "https://github.com/openssl/openssl/commit/572844beca95068394c916626a6d3a490f831a49"}, {"source": "openssl-security@openssl.org", "url": "https://github.com/openssl/openssl/commit/7bbca05be55b129651d9df4bdb92becc45002c12"}, {"source": "openssl-security@openssl.org", "url": "https://github.com/openssl/openssl/commit/eeee3cbd4d682095ed431052f00403004596373e"}, {"source": "openssl-security@openssl.org", "url": "https://github.com/openssl/openssl/commit/ef2fb66ec571564d64d1c74a12e388a2a54d05d2"}, {"source": "openssl-security@openssl.org", "url": "https://openssl-library.org/news/secadv/20260127.txt"}], "sourceIdentifier": "openssl-security@openssl.org", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-754"}], "source": "openssl-security@openssl.org", "type": "Secondary"}]}

{}

{}