CVE-2026-76827
Search-indexer: search-indexer: update/delete operations not scoped to caller's cluster (cross-tenant data tampering)
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
- 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
A flaw was found in search-indexer. This vulnerability allows a registered and authenticated managed cluster to tamper with or delete another cluster's indexed search data. This is possible because the delta-sync write paths in search-indexer do not properly restrict UPDATE/DELETE operations to data owned by the calling cluster. An attacker could exploit this by crafting specific user identifiers (UIDs) with a different cluster's prefix.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- rhacm2/acm-search-indexer-rhel9
Version range not reported
- rhacm2/acm-search-indexer-rhel9
Version range not reported
- rhacm2/acm-search-indexer-rhel9
Version range not reported
- rhacm2/acm-search-indexer-rhel9
Version range not reported
- rhacm2/acm-search-indexer-rhel9
Version range not reported
- rhacm2/acm-search-indexer-rhel9
Version range not reported