{"items":[{"id":"NVI-00016255","kind":"vulnerability","title":"nebula-mesh: Certificate revocation is never enforced at the mesh","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-cm26-5974-52h8","CVE-2026-61699"],"plain_summary":"GitHub lists this reviewed advisory for github.com/forgekeep/nebula-mesh. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-0182faa04ddd89468cdf379e800dd2de"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-14T20:28:19.000Z","value":"8.1 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5734221d437f92837976dd4e3ec8f89f"},{"kind":"EPSS","as_of":"2026-11-04T12:03:12.000Z","value":"0.446%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.38882. Missing scores are unknown.","source_id":"sr-0182faa04ddd89468cdf379e800dd2de"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-5734221d437f92837976dd4e3ec8f89f","url":"https://github.com/advisories/GHSA-cm26-5974-52h8","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-cm26-5974-52h8","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T09:59:43.724Z"},{"id":"sr-0182faa04ddd89468cdf379e800dd2de","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-61699","publisher":"FIRST EPSS","observed_at":"2026-11-04T23:33:33.056Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5734221d437f92837976dd4e3ec8f89f"],"technology":"github.com/forgekeep/nebula-mesh","known_exclusions":[],"conditions_summary":"### Summary\n\nnebula-mesh revokes a host by adding its certificate fingerprint to a per-CA blocklist and shipping that list to every other agent on each poll. Slack's Nebula enforces certificate revocation ONLY through the `pki.blocklist` list in `config.yml` (no CRL/OCSP). The project's own code states this: `internal/pki/durations.go:15` — \"Revocation via the blocklist remains the immediate security control.\"\n\nThe server side is fully implemented (computes per-CA blocklist via `GetBlocklistForCA`, returns it in the agent-updates response, sets `has_updates=true` when non-empty). The agent side was never implemented:\n\n1. The agent decodes the `blocklist` JSON field into `UpdatesResponse.Blocklist` (`internal/agent/poller.go:33`) and then DISCARDS it — `poll()` applies `CertificatePEM`, `CACertPEM`, `ConfigYAML`, but never references `updates.Blocklist` (`internal/agent/poller.go:300-339`).\n2. The config generator has NO field to emit `pki.blocklist` — `pkiSection` is only `ca`/`cert`/`key` (`internal/configgen/marshal.go:42-46`) and `GeneratorInput` carries no blocklist (`internal/configgen/generator.go:23-52`). So even the server-rendered `config.yml` shipped via `ConfigYAML` cann","public_affected_ranges":["< 0.7.1"]}],"null_published_at":"2026-11-06T07:24:11.224Z","source_updated_at":"2026-07-14T20:28:19.000Z","source_disclosed_at":"2026-07-14T20:28:18.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-04T09:59:43.724Z"},{"id":"NVI-00016255","kind":"vulnerability","title":"nebula-mesh: Certificate revocation is never enforced at the mesh","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-cm26-5974-52h8","CVE-2026-61699"],"plain_summary":"GitHub lists this reviewed advisory for github.com/forgekeep/nebula-mesh. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-5734221d437f92837976dd4e3ec8f89f"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-07-14T20:28:19.000Z","value":"8.1 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-5734221d437f92837976dd4e3ec8f89f"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-5734221d437f92837976dd4e3ec8f89f","url":"https://github.com/advisories/GHSA-cm26-5974-52h8","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-cm26-5974-52h8","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T09:59:43.724Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-5734221d437f92837976dd4e3ec8f89f"],"technology":"github.com/forgekeep/nebula-mesh","known_exclusions":[],"conditions_summary":"### Summary\n\nnebula-mesh revokes a host by adding its certificate fingerprint to a per-CA blocklist and shipping that list to every other agent on each poll. Slack's Nebula enforces certificate revocation ONLY through the `pki.blocklist` list in `config.yml` (no CRL/OCSP). The project's own code states this: `internal/pki/durations.go:15` — \"Revocation via the blocklist remains the immediate security control.\"\n\nThe server side is fully implemented (computes per-CA blocklist via `GetBlocklistForCA`, returns it in the agent-updates response, sets `has_updates=true` when non-empty). The agent side was never implemented:\n\n1. The agent decodes the `blocklist` JSON field into `UpdatesResponse.Blocklist` (`internal/agent/poller.go:33`) and then DISCARDS it — `poll()` applies `CertificatePEM`, `CACertPEM`, `ConfigYAML`, but never references `updates.Blocklist` (`internal/agent/poller.go:300-339`).\n2. The config generator has NO field to emit `pki.blocklist` — `pkiSection` is only `ca`/`cert`/`key` (`internal/configgen/marshal.go:42-46`) and `GeneratorInput` carries no blocklist (`internal/configgen/generator.go:23-52`). So even the server-rendered `config.yml` shipped via `ConfigYAML` cann","public_affected_ranges":["< 0.7.1"]}],"null_published_at":"2026-11-04T10:04:27.924Z","source_updated_at":"2026-07-14T20:28:19.000Z","source_disclosed_at":"2026-07-14T20:28:18.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-04T09:59:43.724Z"}],"next_cursor":null,"snapshot_revision":"42594"}