CVE-2026-57204
published 2026-06-30CVE-2026-57204: pypdf is a free and open-source pure-python PDF library. Prior to 6.13.3, a maliciously crafted PDF can cause DoS. An attacker who uses this vulnerability can…
PriorityP432medium6.5CVSS 3.1
AVNACLPRNUIRSUCNINAH
EPSS
0.37%
30.3th percentile
pypdf is a free and open-source pure-python PDF library. Prior to 6.13.3, a maliciously crafted PDF can cause DoS. An attacker who uses this vulnerability can craft a PDF which leads to large memory usage, as MAX_DECLARED_STREAM_LENGTH is sometimes ignored. This requires parsing a content stream without a /Length value. This issue has been fixed in version 6.13.3.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ansible-automation-platform-25 | lightspeed-chatbot-rhel8 | — | — |
| exploit-intelligence-tech-preview | vulnerability-analysis-rhel9 | — | — |
| openshift-lightspeed-tech-preview | lightspeed-rag-tool-rhel9 | — | — |
| openshift-lightspeed | lightspeed-ocp-rag-rhel9 | — | — |
| py-pdf | pypdf | < 6.13.3 | 6.13.3 |
| pypdf_project | pypdf | < 6.13.3 | 6.13.3 |
| quay | quay-rhel8 | — | — |
| quay | quay-rhel9 | — | — |
| rhelai3 | bootc-cuda-rhel9 | — | — |
| rhelai3 | bootc-gaudi-rhel9 | — | — |
| rhelai3 | bootc-rocm-rhel9 | — | — |
| rhelai3 | disk-image-cuda-rhel9 | — | — |
| rhoai | odh-llama-stack-core-rhel9 | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvdv4.06.9MEDIUMCVSS: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
vendor_redhat6.9MEDIUM
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Bugzilla
CVE-2026-57204 python-PyPDF2: pypdf: Denial of Service via crafted PDF with missing stream length [fedora-all]
bugzilla·2026-07-01·CVSS 6.9
CVE-2026-57204 [MEDIUM] CVE-2026-57204 python-PyPDF2: pypdf: Denial of Service via crafted PDF with missing stream length [fedora-all]
CVE-2026-57204 python-PyPDF2: pypdf: Denial of Service via crafted PDF with missing stream length [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
pypdf is a free and open-source pure-python PDF library. Prior to 6.13.3, a maliciously crafted PDF can cause DoS. An attacker who uses this vulnerability can craft a PDF which leads to large memory usage, as MAX_DECLARED_STREAM_LENGTH is sometimes ignored. This requires parsing a content stream without a /Length value. This issue has been fixed in version 6.13.3.
Bugzilla
CVE-2026-57204 python-pypdf: pypdf: Denial of Service via crafted PDF with missing stream length [fedora-all]
bugzilla·2026-07-01·CVSS 6.9
CVE-2026-57204 [MEDIUM] CVE-2026-57204 python-pypdf: pypdf: Denial of Service via crafted PDF with missing stream length [fedora-all]
CVE-2026-57204 python-pypdf: pypdf: Denial of Service via crafted PDF with missing stream length [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
pypdf is a free and open-source pure-python PDF library. Prior to 6.13.3, a maliciously crafted PDF can cause DoS. An attacker who uses this vulnerability can craft a PDF which leads to large memory usage, as MAX_DECLARED_STREAM_LENGTH is sometimes ignored. This requires parsing a content stream without a /Length value. This issue has been fixed in version 6.13.3.
Bugzilla
CVE-2026-57204 pypdf: pypdf: Denial of Service via crafted PDF with missing stream length
bugzilla·2026-07-01·CVSS 6.9
CVE-2026-57204 [MEDIUM] CVE-2026-57204 pypdf: pypdf: Denial of Service via crafted PDF with missing stream length
CVE-2026-57204 pypdf: pypdf: Denial of Service via crafted PDF with missing stream length
pypdf is a free and open-source pure-python PDF library. Prior to 6.13.3, a maliciously crafted PDF can cause DoS. An attacker who uses this vulnerability can craft a PDF which leads to large memory usage, as MAX_DECLARED_STREAM_LENGTH is sometimes ignored. This requires parsing a content stream without a /Length value. This issue has been fixed in version 6.13.3.
2026-06-30
Published