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CVE-2026-27026

Опубликовано: 20 фев. 2026
Источник: redhat
CVSS3: 6.5

Описание

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires a malformed /FlateDecode stream, where the byte-by-byte decompression is used. This vulnerability is fixed in 6.7.1.

A flaw was found in pypdf, a pure-python PDF library. A remote attacker can exploit this vulnerability by crafting a malicious PDF file containing a malformed /FlateDecode stream. This stream, which is used for data compression within the PDF, can cause excessively long processing times when decompressed byte-by-byte. This leads to a Denial of Service (DoS), making the affected system or application unresponsive.

Меры по смягчению последствий

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
OpenShift Lightspeedopenshift-lightspeed/lightspeed-ocp-rag-rhel9Fix deferred
OpenShift Lightspeedopenshift-lightspeed/lightspeed-service-api-rhel9Fix deferred
OpenShift Lightspeedopenshift-lightspeed-tech-preview/lightspeed-rag-tool-rhel9Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3rhelai3/bootc-cuda-rhel9Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3rhelai3/disk-image-cuda-rhel9Fix deferred
Red Hat OpenShift AI (RHOAI)rhoai/odh-llama-stack-core-rhel9Fix deferred

Показывать по

Дополнительная информация

Статус:

Moderate
Дефект:
CWE-1050
https://bugzilla.redhat.com/show_bug.cgi?id=2441495pypdf: pypdf: Denial of Service via malformed PDF /FlateDecode stream

6.5 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.5
ubuntu
около 1 месяца назад

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires a malformed /FlateDecode stream, where the byte-by-byte decompression is used. This vulnerability is fixed in 6.7.1.

CVSS3: 5.5
nvd
около 1 месяца назад

pypdf is a free and open-source pure-python PDF library. Prior to 6.7.1, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires a malformed /FlateDecode stream, where the byte-by-byte decompression is used. This vulnerability is fixed in 6.7.1.

CVSS3: 5.5
debian
около 1 месяца назад

pypdf is a free and open-source pure-python PDF library. Prior to 6.7. ...

github
около 1 месяца назад

pypdf possibly has long runtimes for malformed FlateDecode streams

suse-cvrf
21 день назад

Security update for python-PyPDF2

6.5 Medium

CVSS3