CVE-2026-88884Network attack vector

Supply-chain guard bypass via unaged digest updates

Published Sep 10, 2026 · Updated Sep 10, 2026

Security-control bypass in Mend.io Renovate before 44.3.1 allows attackers to trigger premature digest-update pull requests. The repository worker omits minimumReleaseAge evaluation for updateType=digest and creates a branch or pull request while only marking renovate/stability-days pending. Exposure requires minimumReleaseAge, digest-tracked dependencies, and CI that runs on the resulting pull request, enabling unaged malicious dependency content to reach CI.

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

What happened

Security-control bypass in Mend.io Renovate before 44.3.1 allows attackers to trigger premature digest-update pull requests. The repository worker omits minimumReleaseAge evaluation for updateType=digest and creates a branch or pull request while only marking renovate/stability-days pending. Exposure requires minimumReleaseAge, digest-tracked dependencies, and CI that runs on the resulting pull request, enabling unaged malicious dependency content to reach CI.

The record

CVE
CVE-2026-88884
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
Mend.io
Product
Renovate
Classifications
T1195.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 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 <10.4.0
  2. Affected versionversion=0 <15.4.0
  3. Affected versionversion=0 <44.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mend.io · Renovateversion=0 <10.4.0; version=0 <15.4.0; version=0 <44.3.1

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

Weakness, pattern, technique

T1195.002Compromise Software Supply Chain

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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