6.8
MEDIUM
CVSS 4.0
CVE-2026-76227
Renovate 42.68.1 before 42.96.3 and 43.0.0 before 43.4.4 Environment Variable Exposure
Overview
Description
Renovate versions from 42.68.1 before 42.96.3 and from 43.0.0 before 43.4.4, including the renovate/renovate Docker images, and Mend Renovate CE/EE images (renovate-ce, renovate-ee-server, renovate-ee-worker) from 13.3.0 before 13.6.0, fail to restrict environment variables to an allowlist when spawning child processes. As a result, child processes (e.g. npm install, postUpgradeTasks, postUpdateOptions) gain full access to all environment variables of the Renovate process, allowing insider or outside attackers to exfiltrate secrets accessible to the Renovate deployment.
Details
INFO
Published Date :
Aug. 19, 2026, 2:17 p.m.
Last Modified :
Oct. 8, 2026, 4:17 p.m.
Remotely Exploit :
No
Source :
[email protected]
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
Update Renovate and Docker images to versions that restrict environment variables.
- Update Renovate to version 42.96.3 or later.
- Update Renovate to version 43.4.4 or later.
- Update Docker images to the latest versions.
- Restrict environment variables for child processes.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-76227.
| URL | Resource |
|---|---|
| https://github.com/renovatebot/renovate/security/advisories/GHSA-8wc6-vgrq-x6cf | |
| https://www.vulncheck.com/advisories/renovate-before-environment-variable-exposure |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-76227 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-76227
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-76227 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-76227 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Oct. 08, 2026
Action Type Old Value New Value Added Affected Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/76xxx/CVE-2026-76227.json">CVE-2026-76227</a> -
CVE Modified by [email protected]
Sep. 29, 2026
Action Type Old Value New Value Changed Description Renovate versions from 42.68.1 before 42.96.3 (and from 42.68.1 before 43.4.4), including corresponding Docker images (renovate/renovate, mend/renovate-ce, renovate-ee-server, renovate-ee-worker >=13.3.0 <13.6.0), fail to restrict environment variables to an allowlist when spawning child processes. As a result, child processes (e.g. npm install, postUpgradeTasks, postUpdateOptions) gain full access to all environment variables of the Renovate process, allowing insider or outside attackers to exfiltrate secrets accessible to the Renovate deployment. Renovate versions from 42.68.1 before 42.96.3 and from 43.0.0 before 43.4.4, including the renovate/renovate Docker images, and Mend Renovate CE/EE images (renovate-ce, renovate-ee-server, renovate-ee-worker) from 13.3.0 before 13.6.0, fail to restrict environment variables to an allowlist when spawning child processes. As a result, child processes (e.g. npm install, postUpgradeTasks, postUpdateOptions) gain full access to all environment variables of the Renovate process, allowing insider or outside attackers to exfiltrate secrets accessible to the Renovate deployment. Added Affected Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/76xxx/CVE-2026-76227.json">CVE-2026-76227</a> Added Reference https://github.com/renovatebot/renovate/security/advisories/GHSA-8wc6-vgrq-x6cf Added Reference https://www.vulncheck.com/advisories/renovate-before-environment-variable-exposure Removed Reference https://github.com/renovatebot/renovate/security/advisories/GHSA-8wc6-vgrq-x6cf Removed Reference https://www.vulncheck.com/advisories/renovate-before-environment-variable-exposure -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 25, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-76227', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-25T01:58:10.379378Z'} -
New CVE Received by [email protected]
Aug. 19, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '42.68.1', 'lessThan': '42.96.3', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '42.96.3', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/renovate', 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '42.68.1', 'lessThan': '43.4.4', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '43.4.4', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/renovate', 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '42.68.1', 'lessThan': '42.96.3', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '42.96.3', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '42.68.1', 'lessThan': '43.4.4', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '43.4.4', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '42.68.1', 'lessThan': '42.96.3', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '42.96.3', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '42.68.1', 'lessThan': '43.4.4', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '43.4.4', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '42.68.1', 'lessThan': '42.96.3', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '42.96.3', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '42.68.1', 'lessThan': '43.4.4', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '43.4.4', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '13.3.0', 'lessThan': '13.6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '13.6.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '13.3.0', 'lessThan': '13.6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '13.6.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '13.3.0', 'lessThan': '13.6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '13.6.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '13.3.0', 'lessThan': '13.6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '13.6.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '13.3.0', 'lessThan': '13.6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '13.6.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '13.3.0', 'lessThan': '13.6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '13.6.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '13.3.0', 'lessThan': '13.6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '13.6.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '13.3.0', 'lessThan': '13.6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '13.6.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}, {'vendor': 'renovatebot', 'product': 'renovate', 'versions': [{'status': 'affected', 'version': '13.3.0', 'lessThan': '13.6.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '13.6.0', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Added Description Renovate versions from 42.68.1 before 42.96.3 (and from 42.68.1 before 43.4.4), including corresponding Docker images (renovate/renovate, mend/renovate-ce, renovate-ee-server, renovate-ee-worker >=13.3.0 <13.6.0), fail to restrict environment variables to an allowlist when spawning child processes. As a result, child processes (e.g. npm install, postUpgradeTasks, postUpdateOptions) gain full access to all environment variables of the Renovate process, allowing insider or outside attackers to exfiltrate secrets accessible to the Renovate deployment. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-526 Added Reference https://github.com/renovatebot/renovate/security/advisories/GHSA-8wc6-vgrq-x6cf Added Reference https://www.vulncheck.com/advisories/renovate-before-environment-variable-exposure
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.