CVE Explorer
CVE-2026-48735
pypdf is a free and open-source pure-python PDF library. Prior to 6.12.1, an attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires parsing large XMP metadata, possibly with lots of unnecessary elements. This vulnerability is fixed in 6.12.1.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"pypdf","vendor":"py-pdf","versions":[{"status":"affected","version":"< 6.12.1"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:506981b78d4bdc671b1ed2c89eda14ad33ad8c38da44e7ec733e3f039160d0a8 · sha256:4bb7b196817f5b72… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:506981b78d4bdc671b1ed2c89eda14ad33ad8c38da44e7ec733e3f039160d0a8 · sha256:4bb7b196817f5b72… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:506981b78d4bdc671b1ed2c89eda14ad33ad8c38da44e7ec733e3f039160d0a8 · sha256:4bb7b196817f5b72… · /containers/cna/problemTypes/0/descriptions/0
Source references
3 source assertions{"name":"https://github.com/py-pdf/pypdf/pull/3796","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/pull/3796"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:506981b78d4bdc671b1ed2c89eda14ad33ad8c38da44e7ec733e3f039160d0a8 · sha256:4bb7b196817f5b72… · /containers/cna/references/1
{"name":"https://github.com/py-pdf/pypdf/releases/tag/6.12.1","tags":["x_refsource_MISC"],"url":"https://github.com/py-pdf/pypdf/releases/tag/6.12.1"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:506981b78d4bdc671b1ed2c89eda14ad33ad8c38da44e7ec733e3f039160d0a8 · sha256:4bb7b196817f5b72… · /containers/cna/references/2
{"name":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjqc-6w8f-h24c","tags":["x_refsource_CONFIRM"],"url":"https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjqc-6w8f-h24c"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:506981b78d4bdc671b1ed2c89eda14ad33ad8c38da44e7ec733e3f039160d0a8 · sha256:4bb7b196817f5b72… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.