Micronaut: DefaultHttpClient follows redirects, forwarding Authorization, Cookie, and Proxy-Authorization headers
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
### 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
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | io.micronaut:micronaut-http-client (Maven) | 1.2.8 to before 3.10.6 | 3.10.6 | Patch available | GHSA-q6gh-6v2r-hjv3 |
| — | io.micronaut:micronaut-http-client (Maven) | 4.0.0-M1 to before 4.10.24 | 4.10.24 | Patch available | GHSA-q6gh-6v2r-hjv3 |
| — | io.micronaut:micronaut-http-client (Maven) | 5.0.0-M1 to before 5.0.1 | 5.0.1 | Patch available | GHSA-q6gh-6v2r-hjv3 |
- io.micronaut:micronaut-http-client (Maven) Vendor— Affected 1.2.8 to before 3.10.6 Fixed in 3.10.6 Patch available GHSA-q6gh-6v2r-hjv3
- io.micronaut:micronaut-http-client (Maven) Vendor— Affected 4.0.0-M1 to before 4.10.24 Fixed in 4.10.24 Patch available GHSA-q6gh-6v2r-hjv3
- io.micronaut:micronaut-http-client (Maven) Vendor— Affected 5.0.0-M1 to before 5.0.1 Fixed in 5.0.1 Patch available GHSA-q6gh-6v2r-hjv3
Remediation
- Fix · GHSA-q6gh-6v2r-hjv3 io.micronaut:micronaut-http-client (Maven) Fixed in 3.10.6 Advisory →
- Fix · GHSA-q6gh-6v2r-hjv3 io.micronaut:micronaut-http-client (Maven) Fixed in 4.10.24 Advisory →
- Fix · GHSA-q6gh-6v2r-hjv3 io.micronaut:micronaut-http-client (Maven) Fixed in 5.0.1 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-q6gh-6v2r-hjv3
References
Other 5
- https://github.com/micronaut-projects/micronaut-core/security/advisories/GHSA-q6gh-6v2r-hjv3
- https://github.com/micronaut-projects/micronaut-core/commit/64e539736b8168f201d868b02ace50fe14f57418
- https://github.com/micronaut-projects/micronaut-core/commit/70cab4b44fbf985faba2846091f2356b5bd70719
- https://github.com/micronaut-projects/micronaut-core/commit/9770328999f490bdfbb9e25addd45bf73d4a173a
- https://github.com/micronaut-projects/micronaut-core
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences