Highest advisory severityCritical 2 vendors · 2 advisories

CVE-2026-53537: Information disclosure via header parsing discrepancy

Not in the CISA KEV catalog. Critical advisory severity (CVSS 3.7, 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-2026-53537 key facts

CISA KEV: Not listed (catalog checked Nov 9, 2026)
Highest advisory severity: Critical
CVSS base score: 3.7 (Red Hat)
Fixed releases: Red Hat: 0.0.30
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-2026-53537; bulletin-wide values are not repeated here.

Is CVE-2026-53537 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2026-53537 is not in the CISA KEV catalog (checked Nov 9, 2026) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2026-53537?

Upgrade to a fixed release named by the vendor:

Red Hat: 0.0.30

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Alert me about NetApp

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 severityLow3.7
Low [CVE-2026-53537] Information disclosure via header parsing discrepancy
CVE-2026-53537Source published Jun 22, 2026Source updated Jun 22, 2026
Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.30, parse_options_header parsed Content-Disposition (and Content-Type) headers with email.message. Message, which transparently applies RFC 2231/5987 decoding. The extended parameter syntax (filename*=charset'lang'value, name*=..., and the filename*0/filename*1 continuation form) is decoded and surfaced under the bare filename/name key, and overrides the plain parameter when both are present. RFC 7578 §4.2 explicitly forbids the filename* form in multipart/form-data. Components that follow RFC 7578, or that do not implement RFC 2231/5987 decoding for multipart/form-data (WAFs, proxies, gateways), may interpret such a header differently. An attacker can exploit that difference to smuggle a different field name or…
Affected products in this advisory
Exploit Intelligence
Migration Toolkit for Applications 8
OpenShift Lightspeed
Red Hat AI Inference Server
5 more entries in the full advisory.
Source-reported affected versions
< 0.0.30
Source-reported fixed versions
0.0.30
Mitigation guidance
No mitigation guidance extracted; consult the source.
Full advisory and evidence Open source bulletin

All NetApp advisories

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