CVE-2026-88883 Renovate - Information Disclosure

Renovate before 44.14.4 contains an information disclosure vulnerability caused by incomplete log sanitisation of TLS private keys in Mutual TLS configurations, letting attackers with log access recover private keys, exploit requires access to logs containing unsanitized keys.

CVSS base score 7.7 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.39% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Information Disclosure
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Published
10 September 2026
Updated
15 October 2026
Weakness
CWE-532

Vendor fix

Upgrade to version 44.14.4 or later; alternatively, supply TLS private keys via the documented secrets configuration.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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