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CVE-2026-1386

A UNIX symbolic link following issue in the jailer component in Firecracker version v1.13.1 and earlier and 1.14.0 on Linux may allow a local host user with write access to the pre-created jailer directories to overwrite arbitrary host files via a symlink attack during the initialization copy at jailer startup, if the jailer is executed with root privileges. To mitigate this issue, users should upgrade to version v1.13.2 or 1.14.1 or above.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:69bf31d3d37b3c6b90c3e28c18e03665ccee9cfef2568194c9454e4c25c7b9d7
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":6,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"HIGH","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NO…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:616e4e91975b1d147d87b919f6be6a1c97f36f22b322dc7969d68c697861ed07 · sha256:6bc2049f0bdeba01… · /containers/cna/metrics/1/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:616e4e91975b1d147d87b919f6be6a1c97f36f22b322dc7969d68c697861ed07 · sha256:6bc2049f0bdeba01… · /containers/cna/metrics/0/cvssV3_1

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Firecracker","vendor":"AWS","versions":[{"status":"unaffected","version":"1.13.2"},{"status":"unaffected","version":"1.14.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:616e4e91975b1d147d87b919f6be6a1c97f36f22b322dc7969d68c697861ed07 · sha256:6bc2049f0bdeba01… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":6,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"HIGH","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NO…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:616e4e91975b1d147d87b919f6be6a1c97f36f22b322dc7969d68c697861ed07 · sha256:6bc2049f0bdeba01… · /containers/cna/metrics/1/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":6,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:616e4e91975b1d147d87b919f6be6a1c97f36f22b322dc7969d68c697861ed07 · sha256:6bc2049f0bdeba01… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-61","description":"CWE-61: UNIX Symbolic Link (Symlink) Following","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:616e4e91975b1d147d87b919f6be6a1c97f36f22b322dc7969d68c697861ed07 · sha256:6bc2049f0bdeba01… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"tags":["vendor-advisory"],"url":"https://aws.amazon.com/security/security-bulletins/2026-003-AWS/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:616e4e91975b1d147d87b919f6be6a1c97f36f22b322dc7969d68c697861ed07 · sha256:6bc2049f0bdeba01… · /containers/cna/references/0
{"tags":["patch"],"url":"https://github.com/firecracker-microvm/firecracker/releases/tag/v1.13.2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:616e4e91975b1d147d87b919f6be6a1c97f36f22b322dc7969d68c697861ed07 · sha256:6bc2049f0bdeba01… · /containers/cna/references/2
{"tags":["patch"],"url":"https://github.com/firecracker-microvm/firecracker/releases/tag/v1.14.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:616e4e91975b1d147d87b919f6be6a1c97f36f22b322dc7969d68c697861ed07 · sha256:6bc2049f0bdeba01… · /containers/cna/references/1
{"tags":["third-party-advisory"],"url":"https://github.com/firecracker-microvm/firecracker/security/advisories/GHSA-36j2-f825-qvgc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:616e4e91975b1d147d87b919f6be6a1c97f36f22b322dc7969d68c697861ed07 · sha256:6bc2049f0bdeba01… · /containers/cna/references/3

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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