pypdf: Manipulated FlateDecode predictor parameters can exhaust RAM

Impact An attacker who uses this vulnerability can craft a PDF which leads to the RAM being exhausted. This requires accessing a stream compressed using /FlateDecode with a /Predictor unequal 1 and large predictor parameters. Patches This has been fixed in pypdf==6.10.2. Workarounds If you cannot...

chellow (>=1692799408.0.0, <=1698672999.0.0), pspdfutils (>=3.1.2, <=3.2.0) potentially affected by CVE-2026-41312 via pypdf (3.15.2)

pypdf PYPI version 3.15.2 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - chellow =1692799408.0.0, =3.1.2, =3.2.0 Source cves: CVE-2026-41312 Source advisory: OSV:GHSA-7GW9-CF7V-778F...

gpt3discord (>=11.7.3, <=12.3.8) potentially affected by CVE-2026-41312 via pypdf (3.11.1)

pypdf PYPI version 3.11.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - gpt3discord =11.7.3, =12.3.8 Source cves: CVE-2026-41312 Source advisory: OSV:GHSA-7GW9-CF7V-778F...

PT-2026-34567

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.10.2 Description A flaw in the pypdf library allows an attacker to craft a PDF file that causes RAM exhaustion, leading to a denial of service. This occurs when accessing an image using the /FlateDecode filter with...

PT-2026-34565

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.10.2 Description A flaw in the pure-python PDF library allows an attacker to craft a PDF that leads to RAM exhaustion. This occurs when accessing a stream compressed using '/FlateDecode' with a /Predictor unequal to 1...

PT-2026-34566

Name of the Vulnerable Software and Affected Versions pypdf versions prior to 6.10.2 Description A flaw in the pure-python PDF library allows an attacker to craft a PDF that causes long runtimes. This occurs when loading a PDF in incremental mode that contains a large /Size value in the trailer...

iiiflow (>=0.1.0, <=1.3.2), mayan-edms (>=4.5.0, <=4.5.8) potentially affected by CVE-2026-41168 via pypdf (3.14.0)

pypdf PYPI version 3.14.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - iiiflow =0.1.0, =4.5.0, =4.5.8 Source cves: CVE-2026-41168 Source advisory: OSV:GHSA-JJ6C-8H6C-HPPX...

ai-enterprise-agent (>=0.0.4, <=0.0.9), almax-common (>=1.0.5.dev20240601224039, <=1.0.7.dev20240801212517) +25 more potentially affected by CVE-2026-41168 via pypdf (4.2.0)

pypdf PYPI version 4.2.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - ai-enterprise-agent =0.0.4, =1.0.5.dev20240601224039, =2024.7.4, =0.6.22, =0.2.1, =0.2.0, =0.0.5, =0.2.1, =3.3.2, =0.1.0, =0.0.1, =4.7.1, =0.1.0, =0.1...

chellow (>=1692799408.0.0, <=1698672999.0.0), pspdfutils (>=3.1.2, <=3.2.0) potentially affected by CVE-2026-41168 via pypdf (3.15.2)

pypdf PYPI version 3.15.2 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - chellow =1692799408.0.0, =3.1.2, =3.2.0 Source cves: CVE-2026-41168 Source advisory: OSV:GHSA-JJ6C-8H6C-HPPX...

render50 (9.2.2) potentially affected by CVE-2026-41168 via pypdf (3.15.3)

pypdf PYPI version 3.15.3 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - render50 9.2.2 Source cves: CVE-2026-41168 Source advisory: OSV:GHSA-JJ6C-8H6C-HPPX...

calibreweb (0.6.25), cewler (>=1.3.0, <=1.3.1) +8 more potentially affected by CVE-2026-41168 via pypdf (5.4.0)

pypdf PYPI version 5.4.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - calibreweb 0.6.25 - cewler =1.3.0, =1.1.2, =1.1.0, =1.2.0, =2025.3.0, =0.2.2, =28.3.2, =29.1.2 - ten8t 0.0.22 Source cves: CVE-2026-41168 Source...

fair-llm (>=0.2.0, <=0.6.2), geo-importer (>=0.0.1b1, <=0.0.1b914) +4 more potentially affected by CVE-2026-41168 via pypdf (5.6.0)

pypdf PYPI version 5.6.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - fair-llm =0.2.0, =0.0.1b1, =30.0.5, =30.0.7 - textspitter 0.4.0b0 Source cves: CVE-2026-41168 Source advisory: OSV:GHSA-JJ6C-8H6C-HPPX...

aiagents4pharma (>=1.15.0, <=1.44.0), pypdftotext (>=0.0.6, <=0.0.9) +3 more potentially affected by CVE-2026-41168 via pypdf (5.2.0)

pypdf PYPI version 5.2.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - aiagents4pharma =1.15.0, =0.0.6, =1.0.1, =1.0.1, =1.0.5 Source cves: CVE-2026-41168 Source advisory: OSV:GHSA-JJ6C-8H6C-HPPX...

centricube-langchain (>=1.2.3, <=1.3.0), centricube-pyautogen (>=0.3.2, <=0.3.3) +5 more potentially affected by CVE-2026-41168 via pypdf (5.6.1)

pypdf PYPI version 5.6.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - centricube-langchain =1.2.3, =0.3.2, =0.3.0, =0.1.0, =0.0.11, =0.0.3, =0.0.5 Source cves: CVE-2026-41168 Source advisory: OSV:GHSA-JJ6C-8H6C-HPPX...

docvec-cli (0.1.0), ingenious (>=0.1.0, <=0.1.3) +3 more potentially affected by CVE-2026-41168 via pypdf (5.5.0)

pypdf PYPI version 5.5.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - docvec-cli 0.1.0 - ingenious =0.1.0, =0.1.3b1, =0.2.6, =29.1.3, =30.0.4 Source cves: CVE-2026-41168 Source advisory: OSV:GHSA-JJ6C-8H6C-HPPX...

sereto (0.2.1), ten8t (>=0.0.14, <=0.0.21) potentially affected by CVE-2026-41168 via pypdf (5.3.1)

pypdf PYPI version 5.3.1 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - sereto 0.2.1 - ten8t =0.0.14, =0.0.21 Source cves: CVE-2026-41168 Source advisory: OSV:GHSA-JJ6C-8H6C-HPPX...

aiexec-base (0.6.4), ano-code (>=0.1.6, <=0.1.11) +39 more potentially affected by CVE-2026-41168 via pypdf (5.1.0)

pypdf PYPI version 5.1.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - aiexec-base 0.6.4 - ano-code =0.1.6, =0.0.1, =1.0.0, =0.6.0, =0.0.3, =0.1.0, =0.3.1, =3.3.6, =1.0.16, =0.2.37, =1.0.0, =0.1.11, =0.1.24 and more Sourc...

genai-4-dps-helper (0.2.31), news-scraper-pdf (1.1.6) +6 more potentially affected by CVE-2026-41168 via pypdf (5.3.0)

pypdf PYPI version 5.3.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - genai-4-dps-helper 0.2.31 - news-scraper-pdf 1.1.6 - polytext =0.1.0, =0.1.0, =0.1.10 - python-pdf-toolkit 0.1.1 - synforge 0.1.0 - ta-using-llms 0.0....

aiagents4pharma (>=0.0.0, <=1.49.1), aiagents4pharma-ansh (0.0.0) +67 more potentially affected by CVE-2026-41168 via pypdf (>=6.0.0, <=6.10.0)

pypdf PYPI version =6.0.0, =0.0.0, =1.1.0, =1.0.0a3, =0.2.0, =3.1.0, =0.2.0, =0.2.0, =0.0.3, =0.4.1, =6.2.61, =1.0.20, =1.0.31 and more Source cves: CVE-2026-41168 Source advisory: SNYK:PYTHON-PYPDF-16081092...

gai-common (>=0.1.2, <=0.86.0), gai-lib (0.120.0) +4 more potentially affected by CVE-2026-41168 via pypdf (4.3.0)

pypdf PYPI version 4.3.0 is affected by a known vulnerability. The following packages have a transitive dependency on pypdf and may be impacted: - gai-common =0.1.2, =1.1.3, =0.3.1, =5.3.8, =0.6.6, =0.7.0 Source cves: CVE-2026-41168 Source advisory: OSV:GHSA-JJ6C-8H6C-HPPX...