Redpacketsecurity Critical OAuth Vulnerability in Hawtio-Operator Exposes OpenShift Tokens
Article Content
- •CVE-2026-80219 allows OAuth token theft in OpenShift clusters.
- •Malicious tenants can exploit automatic grant approval to hijack user tokens.
- •Red Hat recommends immediate mitigation measures to secure OAuthClient configurations.
A critical flaw (CVE-2026-80219) was discovered in the hawtio-operator, affecting OpenShift clusters. The operator creates a cluster-scoped OAuthClient with automatic grant approval and no client secret. This allows malicious tenants to register arbitrary hostnames as OAuth redirect targets, enabling token theft without user consent. Attackers can exploit this vulnerability by crafting authorization URLs that redirect tokens to their controlled hosts. The vulnerability poses a high-priority identity-compromise risk, particularly in multi-tenant environments. Red Hat recommends setting GrantMethod to 'prompt' and adding a client secret to mitigate the issue. Administrators are advised to monitor OAuth server audit logs for unexpected authorization grants. The flaw has been classified with a CVSS score indicating critical severity.
Ask AI about this cluster
Answers cite the sources they use
Timeline
More articles in this cluster (2)
Following this threat?
Track Red Hat and CVE-2026-80219 in your own feed — you're alerted when they show up in new reporting, leak sites or exploitation.
Free account · no card needed
Continue Reading
Critical BeyondTrust 9.3 Vulnerability Actively Exploited by Threat Actor A critical vulnerability (CVE-2026-102764) in BeyondTrust Remote Support has been discovered and is actively being exploited by the threat group ARMORY CASTLE, reportedly linked to China. The vulnerability, which has a CVSS score of 9.3, allows unauthenticated attackers to upload files and potentially compromise host… 
Lazarus APT Launches Operation FlashHole Using AI and Post-Quantum Cryptography Kaspersky has identified a cyberespionage campaign, dubbed Operation FlashHole, attributed to the Lazarus APT group, active since July 2025. The campaign has targeted at least three organizations in South Korea's construction, software, and wire-communication sectors. Attack methods include spear-phishing emails…