CVE-2021-21650

Missing Authorization in Jenkins S3 publisher Plugin

4.3 MediumFix available

Jenkins S3 publisher Plugin 0.11.6 and earlier does not perform Run/Artifacts permission checks in various HTTP endpoints and API models, allowing attackers with Item/Read permission to obtain information about artifacts uploaded to S3, if the optional Run/Artifacts permission is enabled.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.71%Up 0.1 points since May 12, 2021

What each source reports

NVD Score used 4.3

Record: CVE-2021-21650
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0: 3.5 LowAV:N/AC:M/Au:S/C:P/I:N/A:N
Updated: 2026-11-02

CVE List No score

Record: CVE-2021-21650
Updated: 2026-11-02

EUVDEUVD-2021-1317 No score

Record: EUVD-2021-1317
Updated: 2026-11-03

GitHub AdvisoriesGHSA-fvfc-8pqr-wjpv 4.3

Missing Authorization in Jenkins S3 publisher Plugin

Jenkins S3 publisher Plugin prior to 0.11.7 and 0.11.5.1 does not perform Run/Artifacts permission checks in various HTTP endpoints and API models.

This allows attackers with Item/Read permission to obtain information about artifacts uploaded to S3, if the optional Run/Artifacts permission is enabled.

Jenkins S3 publisher Plugin 0.11.7 and 0.11.5.1 requires Run/Artifacts permission to obtain information about artifacts if this permission is enabled.

Record: GHSA-fvfc-8pqr-wjpv
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-862
Updated: 2026-11-02

OSVGHSA-fvfc-8pqr-wjpv 4.3

Missing Authorization in Jenkins S3 publisher Plugin

Jenkins S3 publisher Plugin prior to 0.11.7 and 0.11.5.1 does not perform Run/Artifacts permission checks in various HTTP endpoints and API models.

This allows attackers with Item/Read permission to obtain information about artifacts uploaded to S3, if the optional Run/Artifacts permission is enabled.

Jenkins S3 publisher Plugin 0.11.7 and 0.11.5.1 requires Run/Artifacts permission to obtain information about artifacts if this permission is enabled.

Record: GHSA-fvfc-8pqr-wjpv
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness: CWE-862
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`org.jenkins-ci.plugins:s3` Maven	0.11.6 to 0.11.6	0.11.7
`org.jenkins-ci.plugins:s3` Maven	before 0.11.5.1	0.11.5.1
`org.jenkins-ci.plugins:s3` Maven	0.11.6 up to 0.11.7	0.11.7
`org.jenkins-ci.plugins:s3` Maven	before 0.11.5.1, plus listed versions 0.10.10.10.100.10.110.10.120.10.2 Show 25 moreShow less 0.10.30.10.40.10.50.10.5.10.10.60.10.70.10.90.11.00.11.10.11.20.11.30.11.40.11.50.2.00.3.00.3.10.3.20.40.50.60.70.80.9.10.9.20.9.3	0.11.5.1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-21650 is a medium vulnerability (CVSS 4.3) in Jenkins S3 Publisher, published May 11, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.71%, the 53rd percentile. Fixed in org.jenkins-ci.plugins:s3 0.11.7.