{"schemaVersion":3,"id":"CVE-2026-59938","aliases":["GHSA-5qjq-93h5-hrgp","PYSEC-2026-3611","UBUNTU-CVE-2026-59938","DEBIAN-CVE-2026-59938","CGA-2m8j-jfq5-3h5x","CGA-mmq5-g578-3jr4","CGA-2253-cq4f-2wj6","CGA-93q5-9rvg-hg79"],"status":"published","duplicateOf":null,"title":null,"description":"pypdf is a free and open-source pure-python PDF library. Prior to 6.14.0, an attacker can craft a PDF with declared image size values that are much too large compared to the actual data, causing large memory usage in pypdf image parsing. This issue is fixed in version 6.14.0.","dates":{"published":"2026-07-08T17:24:29.959Z","modified":"2026-07-09T13:58:17.678Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.9,"severity":"medium","version":"4.0","versionLabel":"v4.0","source":"CVE.org","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","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":6.9,"severity":"medium","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","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Pypi","score":6.9,"severity":"medium","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","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Ubuntu","score":6.9,"severity":"medium","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","exploitability":null,"impact":null,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","exploitability":10,"impact":2.3,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","exploitability":10,"impact":2.3,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Wolfi","score":6.9,"severity":"medium","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","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Chainguard","score":6.9,"severity":"medium","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","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":6.9,"severity":"medium","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:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":5.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00515,"percentile":0.42677,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00515},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00515,"percentile":0.42677}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00515,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00515,"percentile":0.42677}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-789","name":"Memory Allocation with Excessive Size Value","description":"The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.","type":"weakness","status":"Draft","abstraction":"Variant","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/789.html"}],"affected":[{"vendor":"chainguard","product":"litellm","name":"litellm","label":"litellm","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/litellm","purlType":"apk","versions":[{"text":"< 1.93.0-r3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1.93.0-r3","eol":null,"hubHref":null},{"vendor":"chainguard","product":"open-webui","name":"open-webui","label":"open-webui","ecosystem":"Chainguard","cpePart":null,"purl":"pkg:apk/chainguard/open-webui","purlType":"apk","versions":[{"text":"< 0.11.0-r6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.11.0-r6","eol":null,"hubHref":null},{"vendor":"wolfi","product":"open-webui","name":"open-webui","label":"open-webui","ecosystem":"Wolfi","cpePart":null,"purl":"pkg:apk/wolfi/open-webui","purlType":"apk","versions":[{"text":"< 0.11.0-r6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 0.11.0-r6","eol":null,"hubHref":null},{"vendor":"debian","product":"pypdf","name":"pypdf","label":"pypdf","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/pypdf","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 6.19.0-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 6.19.0-1","eol":null,"hubHref":null},{"vendor":"debian","product":"pypdf2","name":"pypdf2","label":"pypdf2","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/pypdf2","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"pypdf","name":"pypdf","label":"pypdf","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/pypdf","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"pypdf2","name":"pypdf2","label":"pypdf2","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/pypdf2","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"py-pdf","product":"pypdf","name":"pypdf","label":"pypdf","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 6.14.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.14.0","eol":null,"hubHref":"/vendor/py-pdf/pypdf"},{"vendor":"pypdf_project","product":"pypdf","name":"pypdf","label":"pypdf","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 6.14.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.14.0","eol":null,"hubHref":"/vendor/pypdf_project/pypdf"},{"vendor":"PyPI","product":"pypdf","name":"pypdf","label":"pypdf","ecosystem":"PyPI","cpePart":null,"purl":"pkg:pypi/pypdf","purlType":"pypi","versions":[{"text":"< 6.14.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 6.14.0","eol":null,"hubHref":null}],"affectedCount":10,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-5qjq-93h5-hrgp","label":"github.com/py-pdf/pypdf/security/advisories/GHSA-5qjq-93h5-hrgp","hostname":"github.com","tags":["X Refsource CONFIRM","WEB","REPORT","Advisory","Patch","Vendor Advisory"]},{"url":"https://github.com/py-pdf/pypdf/pull/3888","label":"github.com/py-pdf/pypdf/pull/3888","hostname":"github.com","tags":["X Refsource MISC","WEB","REPORT","FIX","Issue Tracking","Patch"]},{"url":"https://github.com/py-pdf/pypdf/commit/c64583be16b8e8763d8777075f8ecbf382014b7a","label":"github.com/py-pdf/pypdf/commit/c64583be16b8e8763d8777075f8ecbf382014b7a","hostname":"github.com","tags":["X Refsource MISC","WEB","FIX","Patch"]},{"url":"https://github.com/py-pdf/pypdf/releases/tag/6.14.0","label":"github.com/py-pdf/pypdf/releases/tag/6.14.0","hostname":"github.com","tags":["X Refsource MISC","WEB","Product","Release Notes"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59938","label":"nvd.nist.gov/vuln/detail/CVE-2026-59938","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://github.com/py-pdf/pypdf","label":"github.com/py-pdf/pypdf","hostname":"github.com","tags":["PACKAGE"]},{"url":"https://pypi.org/project/pypdf","label":"pypi.org/project/pypdf","hostname":"pypi.org","tags":["PACKAGE"]},{"url":"https://github.com/advisories/GHSA-5qjq-93h5-hrgp","label":"github.com/advisories/GHSA-5qjq-93h5-hrgp","hostname":"github.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-59938","label":"ubuntu.com/security/CVE-2026-59938","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-59938","label":"www.cve.org/CVERecord?id=CVE-2026-59938","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-59938","label":"security-tracker.debian.org/tracker/CVE-2026-59938","hostname":"security-tracker.debian.org","tags":["Advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59938.json","label":"github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59938.json","hostname":"github.com","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CGA-PVH5-Q2H5-QV7H"]},"timeline":[{"kind":"published","date":"2026-07-08T17:24:29.959Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-09T13:58:17.678Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":28,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T08:17:20.972Z","stale":false,"partial":false}}