What is GHSA-q6gh-6v2r-hjv3?

GHSA-q6gh-6v2r-hjv3 is a security advisory published by GitHub Security Advisories with Medium severity. Micronaut: DefaultHttpClient follows redirects, forwarding Authorization, Cookie, and Proxy-Authorization headers

Why does GHSA-q6gh-6v2r-hjv3 have no CVE ID yet?

GitHub Security Advisories published this advisory directly to customers before NVD assigned a CVE ID. This is the embargo-window disclosure pattern — vendors notify customers on day 0; NVD's public record follows days to weeks later.

What is the CVSS v3 score of GHSA-q6gh-6v2r-hjv3?

GHSA-q6gh-6v2r-hjv3 has a CVSS v3 base score of 6.8, published by GitHub Security Advisories.

Which products are affected by GHSA-q6gh-6v2r-hjv3?

GHSA-q6gh-6v2r-hjv3 affects 3 products, including: maven/io.micronaut:micronaut-http-client:\u003e= 1.2.8, \u003c 3.10.6; maven/io.micronaut:micronaut-http-client:\u003e= 4.0.0-M1, \u003c 4.10.24; maven/io.micronaut:micronaut-http-client:\u003e= 5.0.0-M1, \u003c 5.0.1.

GHSA-q6gh-6v2r-hjv3MediumCVSS 6.8Disclosed before NVD

Micronaut: DefaultHttpClient follows redirects, forwarding Authorization, Cookie, and Proxy-Authorization headers

Vendor

GitHub Security Advisories

Published

July 9, 2026

Last Modified

July 9, 2026

📋 Description

Impact

DefaultHttpClient follows redirects and forwards Authorization, Cookie, and Proxy-Authorization headers to redirect targets across domain boundaries. The blocklist only filters Host/Connection/TE/CT/CL. Additionally, no maximum redirect count exists, enabling infinite loop DoS. Affected: DefaultHttpClient.java lines 231-245, 1591, 2071

Suggested fix: Strip sensitive headers on cross-domain redirects

Patches

It has been patched for versions:

For Micronaut 5, versions equal or greater than 5.0.1 >= For Micronaut 4, versions equal or greater than 4.10.24 >= For Micronaut 3, versions equal or greater than 3.10.6 >=

Workarounds

References

Micronaut 5 Patch: https://github.com/micronaut-projects/micronaut-core/commit/9770328999f490bdfbb9e25addd45bf73d4a173a Micronaut 4 Patch: https://github.com/micronaut-projects/micronaut-core/commit/70cab4b44fbf985faba2846091f2356b5bd70719 Micronaut 3 Patch: https://github.com/micronaut-projects/micronaut-core/commit/64e539736b8168f201d868b02ace50fe14f57418

🎯 Affected products3

maven/io.micronaut:micronaut-http-client:>= 1.2.8, < 3.10.6
maven/io.micronaut:micronaut-http-client:>= 4.0.0-M1, < 4.10.24
maven/io.micronaut:micronaut-http-client:>= 5.0.0-M1, < 5.0.1