---
id: CVE-2026-88883
title: Renovate is an automated dependency update tool
summary: >-
  Renovate is an automated dependency update tool. In versions before 44.14.4
  (and Mend Renovate CE/EE images before 15.4.0 and the
  mend-renovate-enterprise-edition Helm chart before 10.4.0), log sanitisation
  for TLS private keys used for …
severity: high
cvss: 7.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'
cwe:
  - CWE-532
vendor: renovatebot
product: renovate
affected:
  - renovate < 44.14.44
  - renovate < 44.14.44
  - renovate < 44.14.44
  - renovate < 44.14.44
  - renovate < 15.4.0
  - renovate < 15.4.0
  - renovate < 15.4.0
  - renovate < 15.4.0
  - renovate < 15.4.0
  - renovate < 15.4.0
  - renovate < 15.4.0
  - renovate < 15.4.0
  - renovate < 15.4.0
  - renovate < 15.4.0
  - renovate < 15.4.0
  - renovate < 10.4.0
  - renovate < 10.4.0
published: '2026-09-10'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T15:17:58.213'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88883'
references:
  - url: >-
      https://github.com/renovatebot/renovate/security/advisories/GHSA-4hmw-qw74-vrhm
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/renovate-before-44.14.4-tls-private-key-log-sanitisation
    label: disclosure@vulncheck.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-88883.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-88883'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-88883'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88883'
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-10T14:18:26.314591Z'
ingestedAt: '2026-09-10T13:50:37.334Z'
scores:
  nvd: 7.7
  vendor: 5.5
  cna: 7.7
epss: 0.00281
epssPercentile: 0.20833
---

## Overview

Renovate is an automated dependency update tool. In versions before 44.14.4 (and Mend Renovate CE/EE images before 15.4.0 and the mend-renovate-enterprise-edition Helm chart before 10.4.0), log sanitisation for TLS private keys used for Mutual TLS was incomplete. While the value of hostRules[].httpsPrivateKey was redacted in the field itself, the same private key value was not redacted if it also appeared elsewhere — for example in another configuration option or in a log message under a key other than httpsPrivateKey — causing the full private key to be written to Renovate's logs in cleartext. This affects deployments that configure Mutual TLS through hostRules[].httpsPrivateKey without passing the value through the documented `secrets` configuration. Anyone able to read the resulting logs can recover the private key. The issue is fixed in Renovate 44.14.4, which redacts any value supplied as hostRules[].httpsPrivateKey wherever it appears in the logs; as a workaround, supply the key via the `secrets` configuration.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-88883.json)