CVE-2026-90455Hinoki check available

Known-vulnerability exposure via reverted Requests upgrade

Published Sep 11, 2026 · Updated Sep 11, 2026

Dependency regression in CISA Malcolm before 26.06.0 reintroduces a vulnerable Requests release in the Logstash container. The Logstash image's requirements file reverted an earlier security version bump and pinned the dependency to the vulnerable release. The component uses Requests only at initialization to contact a fixed trusted vendor URL, and no attacker-reachable vulnerable functionality or practical security impact is established.

CVSS severityUnavailable
Unscored
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Dependency regression in CISA Malcolm before 26.06.0 reintroduces a vulnerable Requests release in the Logstash container. The Logstash image's requirements file reverted an earlier security version bump and pinned the dependency to the vulnerable release. The component uses Requests only at initialization to contact a fixed trusted vendor URL, and no attacker-reachable vulnerable functionality or practical security impact is established.

The record

CVE
CVE-2026-90455
Published
Sep 11, 2026
Updated
Sep 11, 2026
Vendor
Cybersecurity and Infrastructure Security Agency (CISA)
Product
Malcolm
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <v26.06.0

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Cybersecurity and Infrastructure Security Agency (CISA) · Malcolmversion=0 <v26.06.0

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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