CVE-2020-8919 | Information leakage in Gerrit

An information leak vulnerability exists in Gerrit versions prior to 2.15.21, 2.16.25, 3.0.15, 3.1.10, 3.2.5 where a missing access check on the branch REST API allows an attacker with only the default set of priviledges to read all other user's personal account data as well as sub-trees with restricted access.

Published: 2020-12-10 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-8919 is rated Low Risk (22.3/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.32%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-8919

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.08% 0.32% +0.24%
2 2025-03-17 0.05% 0.08% +0.03%
3 2024-12-17 — 0.05% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-8919

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.5 3.1 LOW
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.1 1.4 [email protected]
3.5 3.1 LOW
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 2.1 1.4 [email protected]
2.7 2.0 LOW
AV:A/AC:L/Au:S/C:P/I:N/A:N Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 5.1 2.9 [email protected]

Weakness enumeration for CVE-2020-8919

Affected software / configurations for CVE-2020-8919

Vendor Product Version Raw CPE
google gerrit >= 2.15.0, < 2.15.21 cpe:2.3:a:google:gerrit:*:*:*:*:*:*:*:*
google gerrit >= 2.16.0, < 2.16.25 cpe:2.3:a:google:gerrit:*:*:*:*:*:*:*:*
google gerrit >= 3.0.0, < 3.0.15 cpe:2.3:a:google:gerrit:*:*:*:*:*:*:*:*
google gerrit >= 3.1.0, < 3.1.10 cpe:2.3:a:google:gerrit:*:*:*:*:*:*:*:*
google gerrit >= 3.2.0, < 3.2.5 cpe:2.3:a:google:gerrit:*:*:*:*:*:*:*:*

References for CVE-2020-8919

cvelogic Threat Intelligence