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Vulnerability record · CVE-2023-41900 · published 15 September 2023

CVE-2023-41900: Eclipse jetty improper authentication vulnerability

Eclipse · Jetty

Jetty is a Java based web server and servlet engine. Versions 9.4.21 through 9.4.51, 10.0.15, and 11.0.15 are vulnerable to weak authentication. If a Jetty `OpenIdAuthenticator` uses the optional nested `LoginService`, and that `LoginService` decides to revoke an already authenticated user, then the current request will still treat the user as authenticated. The authentication is then cleared from the session and subsequent requests will not be treated as authenticated. So a request on a previously authenticated session could be allowed to bypass authentication after it had been rejected by the `LoginService`. This impacts usages of the jetty-openid which have configured a nested `LoginService` and where that `LoginService` will is capable of rejecting previously authenticated users. Versions 9.4.52, 10.0.16, and 11.0.16 have a patch for this issue.

4.3 CVSS 3.1 Medium EPSS 0.91% · top 39.3% CWE-1390 · CWE-1390CWE-287 · Improper authentication
4.3CVSS 3.1 base score
0.91%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
10References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Jetty is a Java based web server and servlet engine. Versions 9.4.21 through 9.4.51, 10.0.15, and 11.0.15 are vulnerable to weak authentication. If a Jetty `OpenIdAuthenticator` uses the optional nested `LoginService`, and that `LoginService` decides to revoke an already authenticated user, then the current request will still treat the user as authenticated. The authentication is then cleared from the session and subsequent requests will not be treated as authenticated. So a request on a previously authenticated session could be allowed to bypass authentication after it had been rejected by the `LoginService`. This impacts usages of the jetty-openid which have configured a nested `LoginService` and where that `LoginService` will is capable of rejecting previously authenticated users. Versions 9.4.52, 10.0.16, and 11.0.16 have a patch for this issue.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/eclipse/jetty.project/pull/9528 Patch
https://github.com/eclipse/jetty.project/pull/9660 Patch
https://github.com/eclipse/jetty.project/security/advisories/GHSA-pwh8-58vv-vw48 ExploitPatchVendor Advisory
https://security.netapp.com/advisory/ntap-20231110-0004/ Third Party Advisory
https://www.debian.org/security/2023/dsa-5507 Third Party Advisory
https://github.com/eclipse/jetty.project/pull/9528 Patch
https://github.com/eclipse/jetty.project/pull/9660 Patch
https://github.com/eclipse/jetty.project/security/advisories/GHSA-pwh8-58vv-vw48 ExploitPatchVendor Advisory
https://security.netapp.com/advisory/ntap-20231110-0004/ Third Party Advisory
https://www.debian.org/security/2023/dsa-5507 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2023-41900), CISA KEV, FIRST EPSS (scores of 2026-11-14). This page is refreshed as NVD updates the record.