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GHSA-q6gh-6v2r-hjv3: Micronaut: DefaultHttpClient follows redirects, forwarding Authorization, Cookie, and Proxy-Authorization headers

mediumCVSS 6.8
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 No 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

Details

Source
GitHub Security Advisories (INTL · database · site)
Severity
medium — CVSS 6.8
Published
2026-07-09
Last updated
2026-07-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://github.com/advisories/GHSA-q6gh-6v2r-hjv3

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