CVE-2026-41187Calico's apiserver wraps tier-scoped resources so that every operation runs through AuthorizeTierOperation, but the Delete override on NetworkPolicy, GlobalNetworkPolicy, and their staged variants is…
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No exploitation reported and no EPSS estimate yet.
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Calico's apiserver wraps tier-scoped resources so that every operation runs through AuthorizeTierOperation, but the Delete override on NetworkPolicy, GlobalNetworkPolicy, and their staged variants is not invoked for DeleteCollection requests. A user holding the deletecollection verb or wildcard verbs on tier-scoped policy resources can bulk-delete policies in tiers they otherwise have no rights on, breaking the tier authorization boundary.
- CVSS
- 6.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-285, CWE-863
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Aug 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
tigera calico tigera:calico | before 3.21.7; before 3.31.6; through 22.4.0; from 3.22.0 before 3.22.4; from 3.32.0 before 3.32.1 | NVD |
References
- https://github.com/projectcalico/calico/pull/12731issue-tracking, patch
- https://github.com/projectcalico/calico/pull/12735issue-tracking, patch
- https://github.com/projectcalico/calico/pull/12736issue-tracking, patch
- https://github.com/projectcalico/calico/pull/12737issue-tracking, patch
- https://www.tigera.io/security-bulletins/tta-2026-006/vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.