CVE-2019-3867

A vulnerability was found in the Quay web application. Sessions in the Quay web application never expire. An attacker, able to gain access to a session, could use it to control or delete a user's container repository. Red Hat Quay 2 and 3 are vulnerable to this issue.

Published: 2021-03-18 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2019-3867 is rated Low Risk (23.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.29%). Mandatory action: 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-2019-3867

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 0.11% 0.29% +0.19%
2 2025-11-21 0.04% 0.11% +0.07%
3 2025-11-18 0.04%

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-3867

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.1 3.1 MEDIUM
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L Click to expand
Attack vector (AV:P)
Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
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:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
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:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
0.7 3.4 [email protected]
4.4 2.0 MEDIUM
AV:L/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
3.4 6.4 [email protected]

Weakness enumeration for CVE-2019-3867

OS Trackers for CVE-2019-3867

vendor priority summary link
redhat low https://access.redhat.com/security/cve/CVE-2019-3867

Affected software / configurations for CVE-2019-3867

Vendor Product Version Raw CPE
redhat quay 2.0.0 cpe:2.3:a:redhat:quay:2.0.0:*:*:*:*:*:*:*
redhat quay 3.0.0 cpe:2.3:a:redhat:quay:3.0.0:*:*:*:*:*:*:*

References for CVE-2019-3867

URL Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1772704 Issue Tracking Mitigation Third Party Advisory
cvelogic Threat Intelligence