CVE-2026-17628Network attack vectorHinoki check available

Account password change via omitted current-password verification

Published Sep 14, 2026 · Updated Sep 14, 2026

Improper authentication in IBM Langflow OSS 1.0.0 through 1.10.2 allows remote authenticated users to change their account password. The password-reset endpoint accepts a current-password field but never compares it with the stored credential before applying the replacement. An existing authenticated session is required, and the endpoint is limited to the caller's own account; the change can preserve access after session compromise and permit a one-character password.

CVSS severity5.4
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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Summary

What happened

Improper authentication in IBM Langflow OSS 1.0.0 through 1.10.2 allows remote authenticated users to change their account password. The password-reset endpoint accepts a current-password field but never compares it with the stored credential before applying the replacement. An existing authenticated session is required, and the endpoint is limited to the caller's own account; the change can preserve access after session compromise and permit a one-character password.

The record

CVE
CVE-2026-17628
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
IBM
Product
Langflow OSS
Classifications
CWE-287, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 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=1.0.0 <=1.10.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Langflow OSSversion=1.0.0 <=1.10.2

Published CVSS scores

5.4IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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