CVE-2026-31839

Confirmation data tampering via mutable manifest hashes

Published Mar 11, 2026 · Updated Mar 11, 2026

Integrity bypass in Striae before 3.0.0 allows attackers to alter confirmation data in exported packages and pass import checks. The digital confirmation workflow compares package content against mutable manifest hashes stored within the same trust boundary. Exploitation requires access to an exported package and user interaction to import or verify it, compromising confirmation integrity and forensic chain of custody.

CVSS severity8.2
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integrity bypass in Striae before 3.0.0 allows attackers to alter confirmation data in exported packages and pass import checks. The digital confirmation workflow compares package content against mutable manifest hashes stored within the same trust boundary. Exploitation requires access to an exported package and user interaction to import or verify it, compromising confirmation integrity and forensic chain of custody.

The record

CVE
CVE-2026-31839
Published
Mar 11, 2026
Updated
Mar 11, 2026
Vendor
Striae
Product
Striae
Classifications
CWE-354, T1565.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 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=>= 0.9.22-0, < 3.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Striae · Striaeversion=>= 0.9.22-0, < 3.0.0

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
8.2GitHub, Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

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

Weakness, pattern, technique

CWE-354Improper Validation of Integrity Check Value
T1565.001Stored Data Manipulation

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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