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CVE-2026-56748

Improper validation of symbolic links in the Pack Git import feature in Cribl Stream before 4.18.2 allows a remote authenticated attacker with Pack import and pipeline preview permissions to execute arbitrary code as the Cribl server process via a crafted Git repository containing a symbolic link in the pack's functions directory.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:ab5fd83e7c8f60ec7ce8131205aa08377a9ce36c3f9d3f3059b878e266083d3f
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":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpac…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b99606921cb20a3d5cdc7a55d70c6546d858da0a0c5e0b0e4fd0d1ad7eb7e993 · sha256:185611834855ce44… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b99606921cb20a3d5cdc7a55d70c6546d858da0a0c5e0b0e4fd0d1ad7eb7e993 · sha256:185611834855ce44… · /containers/cna/metrics/0/cvssV3_1

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Cribl Stream","vendor":"Cribl","versions":[{"lessThan":"4.18.2","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b99606921cb20a3d5cdc7a55d70c6546d858da0a0c5e0b0e4fd0d1ad7eb7e993 · sha256:185611834855ce44… · /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":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpac…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b99606921cb20a3d5cdc7a55d70c6546d858da0a0c5e0b0e4fd0d1ad7eb7e993 · sha256:185611834855ce44… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b99606921cb20a3d5cdc7a55d70c6546d858da0a0c5e0b0e4fd0d1ad7eb7e993 · sha256:185611834855ce44… · /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:b99606921cb20a3d5cdc7a55d70c6546d858da0a0c5e0b0e4fd0d1ad7eb7e993 · sha256:185611834855ce44… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"Cribl Stream 4.18.2 Security Fixes","tags":["release-notes"],"url":"https://docs.cribl.io/stream/release-notes/release-v4182/#security-fixes"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b99606921cb20a3d5cdc7a55d70c6546d858da0a0c5e0b0e4fd0d1ad7eb7e993 · sha256:185611834855ce44… · /containers/cna/references/0
{"name":"Cribl Trust Portal","tags":["vendor-advisory"],"url":"https://trust.cribl.io/notifications"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b99606921cb20a3d5cdc7a55d70c6546d858da0a0c5e0b0e4fd0d1ad7eb7e993 · sha256:185611834855ce44… · /containers/cna/references/1

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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