Highest advisory severityCritical 2 vendors · 2 advisories

CVE-2026-57204: Denial of Service via crafted PDF with missing stream length

Not in the CISA KEV catalog. Critical advisory severity (CVSS 6.5, Red Hat).

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

NVD detail CVE.org

CVE-2026-57204 key facts

CISA KEV: Not listed (catalog checked Nov 7, 2026)
Highest advisory severity: Critical
CVSS base score: 6.5 (Red Hat)
Fixed releases: Red Hat: 6.13.3
Vendor advisories: 2 from NetApp, Red Hat
VulniPulse record: Published Jul 13, 2026 · Updated Sep 29, 2026

Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-57204; bulletin-wide values are not repeated here.

Is CVE-2026-57204 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-57204 is not in the CISA KEV catalog (checked Nov 7, 2026) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-57204?

Upgrade to a fixed release named by the vendor:

Red Hat: 6.13.3

To mitigate this issue, Red Hat recommends avoiding the processing of untrusted PDF files with applications utilizing the pypdf library. Additionally, deploying applications that handle PDF content within a sandboxed environment can limit the potential impact of successful exploitation. (Red Hat)

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Vendor advisory comparison

NetApp

1 advisory

Advisory severityCritical10.0
Critical [CVE-2022-42969 +99] September 2026 IBM Cognos Analytics Vulnerabilities in NetApp Products
NTAP-20260917-0001Source published Sep 17, 2026Source updated Sep 29, 2026
This bulletin covers 100 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.
There are vulnerabilities in multiple Open-Source Software (OSS) components consumed by IBM Cognos Analytics versions 12.1.0 through 12.1.3 FP1 and 12.0.4 through 12.0.4 FP2 which when successfully exploited could lead to disclosure of sensitive information, addition or modification of data, or Denial of Service (DoS). NetApp states there is no workaround available at this time.
Affected products in this advisory
No product details extracted. Check the source bulletin.
Source-reported affected versions
12.1.0
12.1.3
12.0.4
Source-reported fixed versions
No fixed-version detail extracted. This does not mean no fix exists.
Mitigation guidance
No mitigation guidance extracted; consult the source.
Full advisory and evidence Open source bulletin

Red Hat

1 advisory

Advisory severityMedium6.5
Medium [CVE-2026-57204] Denial of Service via crafted PDF with missing stream length
CVE-2026-57204Source published Jun 30, 2026Source updated Jun 30, 2026
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. A remote attacker could exploit this vulnerability by crafting a malicious PDF file that, when parsed, leads to uncontrolled resource consumption and large memory usage. This occurs because the library sometimes ignores defined limits for stream lengths when a content stream lacks a /Length value. Successful exploitation could result in a Denial of Service (DoS) condition, making the system or application unavailable. This…
Affected products in this advisory
Exploit Intelligence
OpenShift Lightspeed
Red Hat Ansible Automation Platform 2
Red Hat Enterprise Linux AI (RHEL AI) 3
2 more entries in the full advisory.
Source-reported affected versions
< 6.13.3
Source-reported fixed versions
6.13.3
Mitigation guidance
To mitigate this issue, Red Hat recommends avoiding the processing of untrusted PDF files with applications utilizing the pypdf library. Additionally, deploying applications that handle PDF content within a sandboxed environment can limit the potential impact of successful exploitation.
Full advisory and evidence Open source bulletin

All NetApp advisories

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