CVE-2026-27640Network attack vector

Sensitive value disclosure via incomplete report masking

Published Feb 25, 2026 · Updated Feb 25, 2026

Sensitive information exposure in oocx tfplan2md before 1.26.1 allows remote authenticated users to read masked Terraform values. AzApi create, delete, and replace renderers read values directly from before.body or after.body, the update path ignored its sensitivity flag, and other paths mishandled secret transitions or hierarchical markers. Access to a generated report containing marked-sensitive data is required, and the disclosure can expose credentials or other secrets in Markdown output.

CVSS severity8.5
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive information exposure in oocx tfplan2md before 1.26.1 allows remote authenticated users to read masked Terraform values. AzApi create, delete, and replace renderers read values directly from before.body or after.body, the update path ignored its sensitivity flag, and other paths mishandled secret transitions or hierarchical markers. Access to a generated report containing marked-sensitive data is required, and the disclosure can expose credentials or other secrets in Markdown output.

The record

CVE
CVE-2026-27640
Published
Feb 25, 2026
Updated
Feb 25, 2026
Vendor
oocx
Product
tfplan2md
Classifications
CWE-212, T1552.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 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=< 1.26.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

oocx · tfplan2mdversion=< 1.26.1

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.5GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H

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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-212Improper Removal of Sensitive Information Before Storage or Transfer
T1552.001Unsecured Credentials: Credentials In Files

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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