CVE-2019-11284
Medium
Elevated severity or exploit probability.
CVSS base
8.6
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS — probability of exploitation (30 days)
0.9%
57.9th percentile
CISA KEV
Not listed
Weakness / dates
CWE-522
Published 2019-10-17 · modified 2026-09-04
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | C | Changed |
| Confidentiality | H | High |
| Integrity | N | None |
| Availability | N | None |
Timeline
- 2019-10-17 — Published (NVD)
- 2026-09-04 — Last modified (NVD)
Description
Pivotal Reactor Netty, versions prior to 0.8.11, passes headers through redirects, including authorization ones. A remote unauthenticated malicious user may gain access to credentials for a different server than they have access to.