{"id":"CVE-2026-8814","state":"PUBLISHED","title":"Versions of the package exifreader before 4.39.0 are vulnerable to Improper Handling of Highly Compressed Data (Data Amplification) due to decompressing PNG zTXt metadata without e","description":"Versions of the package exifreader before 4.39.0 are vulnerable to Improper Handling of Highly Compressed Data (Data Amplification) due to decompressing PNG zTXt metadata without enforcing a built-in maximum decompressed output size. When asynchronous parsing is enabled, a crafted PNG file containing a highly compressed zTXt chunk can cause ExifReader to materialize a disproportionately large Comment value in memory.","publishedAt":"2026-05-19T05:00:09.223Z","updatedAt":"2026-05-19T13:11:48.613Z","severity":{"score":6.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","source":"snyk"},"assigner":"snyk","products":["n/a exifreader"],"affected":[{"vendor":"n/a","product":"exifreader","versions":[{"version":"0","status":"affected","lessThan":"4.39.0","versionType":"semver"}]}],"references":["https://security.snyk.io/vuln/SNYK-JS-EXIFREADER-16689340","https://gist.github.com/yuki-matsuhashi/cad1a45d936062438b4ab24613c34c55","https://github.com/mattiasw/ExifReader/commit/5f116128adc19f674902f8bf582bfe7dd0a36375"],"weaknesses":["CWE-409"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/8xxx/CVE-2026-8814.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-8814","state":"PUBLISHED","datePublished":"2026-05-19T05:00:09.223Z","dateUpdated":"2026-05-19T13:11:48.613Z","assignerShortName":"snyk","assignerOrgId":"bae035ff-b466-4ff4-94d0-fc9efd9e1730","dateReserved":"2026-05-18T08:43:29.632Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Versions of the package exifreader before 4.39.0 are vulnerable to Improper Handling of Highly Compressed Data (Data Amplification) due to decompressing PNG zTXt metadata without enforcing a built-in maximum decompressed output size. When asynchronous parsing is enabled, a crafted PNG file containing a highly compressed zTXt chunk can cause ExifReader to materialize a disproportionately large Comment value in memory."}],"affected":[{"vendor":"n/a","product":"exifreader","versions":[{"version":"0","status":"affected","lessThan":"4.39.0","versionType":"semver"}]}],"references":[{"url":"https://security.snyk.io/vuln/SNYK-JS-EXIFREADER-16689340"},{"url":"https://gist.github.com/yuki-matsuhashi/cad1a45d936062438b4ab24613c34c55"},{"url":"https://github.com/mattiasw/ExifReader/commit/5f116128adc19f674902f8bf582bfe7dd0a36375"}],"metrics":[{"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","exploitCodeMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P"},"cvssV4_0":{"version":"4.0","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-409","description":"Improper Handling of Highly Compressed Data (Data Amplification)","lang":"en"}]}],"providerMetadata":{"shortName":"snyk","orgId":"bae035ff-b466-4ff4-94d0-fc9efd9e1730","dateUpdated":"2026-05-19T05:00:09.223Z"},"credits":[{"value":"Yuki Matsuhashi","lang":"en"}]},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://security.snyk.io/vuln/SNYK-JS-EXIFREADER-16689340","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-19T13:11:02.751372Z","id":"CVE-2026-8814","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-409","type":"CWE","lang":"en","description":"CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-19T13:11:48.613Z"}}]}}}