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CVE-2026-34783

Ferret is a declarative system for working with web data. Prior to 2.0.0-alpha.4, a path traversal vulnerability in Ferret's IO::FS::WRITE standard library function allows a malicious website to write arbitrary files to the filesystem of the machine running Ferret. When an operator scrapes a website that returns filenames containing ../ sequences, and uses those filenames to construct output paths (a standard scraping pattern), the attacker controls both the destination path and the file content
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e3f3545494fd8e67eae1ddb6ea946136a6643b902585ea90111b4f5ffe7c0216
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-73","description":"CWE-73: External Control of File Name or Path","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:17665e588d1bc40b70734aa01293894397510786c826da1e6eaf615ade6a4d81 · sha256:d1df24c9447d340c… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:17665e588d1bc40b70734aa01293894397510786c826da1e6eaf615ade6a4d81 · sha256:d1df24c9447d340c… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"ferret","vendor":"MontFerret","versions":[{"status":"affected","version":"< 2.0.0-alpha.4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:17665e588d1bc40b70734aa01293894397510786c826da1e6eaf615ade6a4d81 · sha256:d1df24c9447d340c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:17665e588d1bc40b70734aa01293894397510786c826da1e6eaf615ade6a4d81 · sha256:d1df24c9447d340c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-73","description":"CWE-73: External Control of File Name or Path","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:17665e588d1bc40b70734aa01293894397510786c826da1e6eaf615ade6a4d81 · sha256:d1df24c9447d340c… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:17665e588d1bc40b70734aa01293894397510786c826da1e6eaf615ade6a4d81 · sha256:d1df24c9447d340c… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/MontFerret/ferret/commit/160ebad6bd50f153453e120f6d909f5b83322917","tags":["x_refsource_MISC"],"url":"https://github.com/MontFerret/ferret/commit/160ebad6bd50f153453e120f6d909f5b83322917"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:17665e588d1bc40b70734aa01293894397510786c826da1e6eaf615ade6a4d81 · sha256:d1df24c9447d340c… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/MontFerret/ferret/security/advisories/GHSA-j6v5-g24h-vg4j"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:17665e588d1bc40b70734aa01293894397510786c826da1e6eaf615ade6a4d81 · sha256:d1df24c9447d340c… · /containers/adp/0/references/0
{"name":"https://github.com/MontFerret/ferret/security/advisories/GHSA-j6v5-g24h-vg4j","tags":["x_refsource_CONFIRM"],"url":"https://github.com/MontFerret/ferret/security/advisories/GHSA-j6v5-g24h-vg4j"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:17665e588d1bc40b70734aa01293894397510786c826da1e6eaf615ade6a4d81 · sha256:d1df24c9447d340c… · /containers/cna/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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