CVE-2020-8920

Overoptimization leads to private information leak in Gerrit

LOW

3.5

CVSS Score

Published: December 10, 2020 at 10:15 AM UTC

Updated: June 17, 2026 at 03:27 AM UTC

2 products affected across 2 vendorsGerritGerrit

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Severity

LOW3.5

Exploit prediction

EPSS 0.4%

Description

An information leak vulnerability exists in Gerrit versions prior to 2.14.22, 2.15.21, 2.16.25, 3.0.15, 3.1.10, 3.2.5 where an overoptimization with the FilteredRepository wrapper skips the verification of access on All-Users repositories, allowing an attacker to get read access to all users' personal information associated with their accounts.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Gerrit · Google

95%

2.14.0 ≤ v < 2.14.222.15.0 ≤ v < 2.15.212.16.0 ≤ v < 2.16.253.0.0 ≤ v < 3.0.153.1.0 ≤ v < 3.1.103.2.0 ≤ v < 3.2.5

Affected range stops below 2.14.22, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.15.21, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.16.25, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.0.15, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.1.10, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.2.5, so it looks safe — our inference, not a vendor statement

Gerrit · Gerrit

60%

stable ≤ v < 2.14.22stable

Affected range stops below 2.14.22, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references