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CVE-2026-40243

Incus is a system container and virtual machine manager. In versions before 7.0.0, broken TLS validation logic in the OVN database connection logic can allow connections to an attacker's OVN database. The OVN client implementations disable Go standard TLS server verification and replace it with custom peer-certificate verification logic. That replacement verifier does not anchor trust in the configured CA certificate. Instead, it constructs the verification root set from certificates supplied by
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:bfef96d508865d079fcd9a4e64a42edaece21aaa61372abc6409e45c36e2a595
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"incus","vendor":"lxc","versions":[{"status":"affected","version":"< 7.0.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c0a4f563003cda3614b439904e14b91a354a63170dcdf80b668ff5e0e21bb0a0 · sha256:94e2c932662038eb… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":2.3,"baseSeverity":"LOW","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c0a4f563003cda3614b439904e14b91a354a63170dcdf80b668ff5e0e21bb0a0 · sha256:94e2c932662038eb… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-295","description":"CWE-295: Improper Certificate Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c0a4f563003cda3614b439904e14b91a354a63170dcdf80b668ff5e0e21bb0a0 · sha256:94e2c932662038eb… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"name":"https://github.com/lxc/incus/blob/v6.22.0/internal/server/network/ovn/ovn_icnb.go","tags":["x_refsource_MISC"],"url":"https://github.com/lxc/incus/blob/v6.22.0/internal/server/network/ovn/ovn_icnb.go"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c0a4f563003cda3614b439904e14b91a354a63170dcdf80b668ff5e0e21bb0a0 · sha256:94e2c932662038eb… · /containers/cna/references/1
{"name":"https://github.com/lxc/incus/blob/v6.22.0/internal/server/network/ovn/ovn_icsb.go","tags":["x_refsource_MISC"],"url":"https://github.com/lxc/incus/blob/v6.22.0/internal/server/network/ovn/ovn_icsb.go"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c0a4f563003cda3614b439904e14b91a354a63170dcdf80b668ff5e0e21bb0a0 · sha256:94e2c932662038eb… · /containers/cna/references/2
{"name":"https://github.com/lxc/incus/blob/v6.22.0/internal/server/network/ovn/ovn_nb.go","tags":["x_refsource_MISC"],"url":"https://github.com/lxc/incus/blob/v6.22.0/internal/server/network/ovn/ovn_nb.go"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c0a4f563003cda3614b439904e14b91a354a63170dcdf80b668ff5e0e21bb0a0 · sha256:94e2c932662038eb… · /containers/cna/references/3
{"name":"https://github.com/lxc/incus/blob/v6.22.0/internal/server/network/ovn/ovn_sb.go","tags":["x_refsource_MISC"],"url":"https://github.com/lxc/incus/blob/v6.22.0/internal/server/network/ovn/ovn_sb.go"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c0a4f563003cda3614b439904e14b91a354a63170dcdf80b668ff5e0e21bb0a0 · sha256:94e2c932662038eb… · /containers/cna/references/4
{"name":"https://github.com/lxc/incus/security/advisories/GHSA-c839-4qxr-j4x3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/lxc/incus/security/advisories/GHSA-c839-4qxr-j4x3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c0a4f563003cda3614b439904e14b91a354a63170dcdf80b668ff5e0e21bb0a0 · sha256:94e2c932662038eb… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/lxc/incus/security/advisories/GHSA-c839-4qxr-j4x3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c0a4f563003cda3614b439904e14b91a354a63170dcdf80b668ff5e0e21bb0a0 · sha256:94e2c932662038eb… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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