CVE-2026-22801

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{"affected": [{"affectedData": [{"product": "libpng", "vendor": "pnggroup", "versions": [{"status": "affected", "version": "< 1.6.54"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*", "matchCriteriaId": "4E5664F6-3EA2-4459-8380-BEB9937EFBE1", "versionEndExcluding": "1.6.54", "versionStartIncluding": "1.6.26", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535 bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings on 16-bit systems. This vulnerability is fixed in 1.6.54."}, {"lang": "es", "value": "LIBPNG es una biblioteca de referencia para usar en aplicaciones que leen, crean y manipulan archivos de imagen r\u00e1ster PNG (Portable Network Graphics). Desde la versi\u00f3n 1.6.26 hasta la 1.6.53, existe un truncamiento de enteros en las funciones API de escritura simplificadas de libpng, png_write_image_16bit y png_write_image_8bit, que causa una lectura excesiva del b\u00fafer de la pila (heap buffer over-read) cuando el llamador proporciona un paso de fila negativo (para dise\u00f1os de imagen de abajo hacia arriba) o un paso que excede los 65535 bytes. El error fue introducido en libpng 1.6.26 (octubre de 2016) por conversiones de tipo a\u00f1adidas para silenciar advertencias del compilador en sistemas de 16 bits. Esta vulnerabilidad est\u00e1 corregida en la versi\u00f3n 1.6.54."}], "id": "CVE-2026-22801", "lastModified": "2026-06-17T10:20:27.327", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.8, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-22801", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-01-13T19:37:38.282435Z", "version": "2.0.3"}}]}, "published": "2026-01-12T23:15:52.907", "references": [{"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/pnggroup/libpng/security/advisories/GHSA-vgjq-8cw5-ggw8"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}, {"lang": "en", "value": "CWE-190"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API", "id": "2428824", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2428824"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "status": "draft"}, "cwe": "(CWE-125|CWE-190)", "details": ["A flaw was found in libpng, a reference library for PNG (Portable Network Graphics) raster image files. An integer truncation vulnerability exists in the png_write_image_16bit and png_write_image_8bit simplified write API functions. A local attacker could exploit this flaw by providing a negative row stride (for bottom-up image layouts) or a stride exceeding 65535 bytes, leading to a heap buffer over-read. This can result in information disclosure or a denial of service (DoS) to the system."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-22801", "package_state": [{"cpe": "cpe:/a:redhat:openjdk_els:11", "fix_state": "Fix deferred", "package_name": "java-11-openjdk", "product_name": "Red Hat build of OpenJDK 11 ELS"}, {"cpe": "cpe:/a:redhat:openjdk_els:11", "fix_state": "Fix deferred", "package_name": "java-11-openjdk-portable", "product_name": "Red Hat build of OpenJDK 11 ELS"}, {"cpe": "cpe:/a:redhat:openjdk_els:11", "fix_state": "Fix deferred", "package_name": "java-21-openjdk-portable", "product_name": "Red Hat build of OpenJDK 11 ELS"}, {"cpe": "cpe:/a:redhat:openjdk:17", "fix_state": "Fix deferred", "package_name": "java-17-openjdk-portable", "product_name": "Red Hat build of OpenJDK 17"}, {"cpe": "cpe:/a:redhat:openjdk:17", "fix_state": "Fix deferred", "package_name": "java-21-openjdk-portable", "product_name": "Red Hat build of OpenJDK 17"}, {"cpe": "cpe:/a:redhat:openjdk:1.8", "fix_state": "Fix deferred", "package_name": "java-1.8.0-openjdk-portable", "product_name": "Red Hat build of OpenJDK 1.8"}, {"cpe": "cpe:/a:redhat:openjdk:21", "fix_state": "Fix deferred", "package_name": "java-21-openjdk-portable", "product_name": "Red Hat build of OpenJDK 21"}, {"cpe": "cpe:/a:redhat:openjdk:21", "fix_state": "Fix deferred", "package_name": "java-21-openjdk-portable-rhel7", "product_name": "Red Hat build of OpenJDK 21"}, {"cpe": "cpe:/a:redhat:openjdk:25", "fix_state": "Fix deferred", "package_name": "java-21-openjdk-vanilla", "product_name": "Red Hat build of OpenJDK 25"}, {"cpe": "cpe:/a:redhat:openjdk:25", "fix_state": "Fix deferred", "package_name": "java-25-openjdk-portable", "product_name": "Red Hat build of OpenJDK 25"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "java-21-openjdk", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "java-25-openjdk", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "libpng", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Fix deferred", "package_name": "libpng", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "libpng", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "libpng12", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "java-17-openjdk", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "java-1.8.0-openjdk", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "java-21-openjdk", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "libpng", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "libpng12", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "libpng15", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "mingw-libpng", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "java-17-openjdk", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "java-1.8.0-openjdk", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "java-21-openjdk", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "java-25-openjdk", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "libpng", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "libpng15", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-01-12T22:57:58Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-22801\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-22801\nhttps://github.com/pnggroup/libpng/security/advisories/GHSA-vgjq-8cw5-ggw8"], "statement": "This vulnerability is rated Moderate for Red Hat products. An integer truncation flaw in the libpng simplified write API functions (`png_write_image_16bit`, `png_write_image_8bit`) can lead to a heap buffer over-read. Exploitation requires an application to process specially crafted input that provides a negative row stride or a stride exceeding 65535 bytes, potentially resulting in denial of service or information disclosure.", "threat_severity": "Moderate"}

{"analysis": {"en": {"generated_at": "2026-04-18T06:53:49.319049+00:00", "value": {"mitigation_remediation": ["Upgrade the libpng library to version 1.6.54 or later, which contains the fix for the integer truncation bug.", "Validate any stride parameters before calling png_write_image_16bit or png_write_image_8bit, ensuring that the stride is non\u2011negative and less than 65536.", "Perform a code review or static analysis of all image\u2011writing functionality to identify and replace any remaining calls to the vulnerable functions with safer alternatives."], "summary": {"action": "Patch or Update", "impact": "Heap buffer over\u2011read leading to potential information disclosure"}, "threat_synthesis": {"affected_systems": "Library: libpng from the pnggroup organization. Versions 1.6.26 through 1.6.53 are affected; the problem was introduced in 1.6.26 and fixed in 1.6.54. Applications that invoke png_write_image_16bit or png_write_image_8bit with improper stride parameters run the risk of memory disclosure.", "description_and_impact": "The flaw is an integer truncation in the simplified write API functions png_write_image_16bit and png_write_image_8bit that permits a heap buffer over\u2011read when a negative row stride or a stride larger than 65535 bytes is supplied. This defect allows applications that link against libpng to read memory beyond the intended buffer boundaries, potentially leaking sensitive data. The vulnerability is classified under CWE\u2011125 (Buffer Over\u2011read) and CWE\u2011190 (Integer Overflow) due to the truncation of stride values during casting.", "risk_and_exploitability": "The CVSS base score of 6.8 indicates a moderate impact. EPSS is below 1%, suggesting a very low likelihood of exploitation in the near term, and the vulnerability is not listed in CISA's KEV catalog. Nevertheless, an attacker who controls image processing routines could supply a negative stride or an excessively large stride to trigger the over\u2011read, exposing arbitrary heap contents and compromising confidentiality of the host system or application."}}}}, "created": "2026-01-13T09:27:17.020489+00:00", "updated": "2026-04-18T07:00:11.349971+00:00", "vendors": ["libpng", "libpng$PRODUCT$libpng"]}