CVE-2026-41715GHSA-PFC9-2CQG-9WQ6
Reactor Netty HTTP Client Leaks Credentials On Protocol Downgrade Redirect
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 1.0.52, 1.1.36, 1.2.17.1, 1.3.15.1, 1.3.6, and 1 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In specific scenarios involving HTTP redirects from a secure to an insecure endpoint, the Reactor Netty HTTP client may leak credentials. In order for this to happen, the HTTP client must have been explicitly configured to follow redirects. Affected versions: Reactor Netty 1.0.0 through 1.0.51; 1.1.0 through 1.1.35; 1.2.0 through 1.2.17; 1.3.0 through 1.3.5.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Spring Reactor Netty
From 1.0.0 · fixed in 1.0.52; From 1.1.0 · fixed in 1.1.36; From 1.2.0 · fixed in 1.2.17.1; From 1.3.0 · fixed in 1.3.15.1
- io.projectreactor.netty:reactor-nettyMaven
From 1.3.0 · fixed in 1.3.6
- io.projectreactor.netty:reactor-nettyMaven
From 1.2.0 · fixed in 1.2.18
- io.projectreactor.netty:reactor-nettyMaven
From 1.1.0 · through 1.1.31
- io.projectreactor.netty:reactor-nettyMaven
From 1.0.0 · through 1.0.48