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CVE-2026-42596

Gotenberg is a Docker-powered stateless API for PDF files. Prior to 8.31.0, the default deny-lists used by Gotenberg's downloadFrom feature and webhook feature are bypassable. Because the filter is regex-based and case-sensitive, an unauthenticated attacker can supply URLs such as http://[::ffff:127.0.0.1]:... and reach loopback or private HTTP services that the default deny-list is intended to block. This crosses a real security boundary because an external caller can force the server to make o
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:28a414a10a24ad6a2cb01bb0e5e0f6109b9209b0d65d5a3674b697eb3233de92
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"gotenberg","vendor":"gotenberg","versions":[{"status":"affected","version":"< 8.31.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:41e5bb63dc77ceccf14056ed2107c98fbad6a9fdafec58d0a9bf855c817ba6e0 · sha256:0ea54e60cb944a63… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":9.4,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:41e5bb63dc77ceccf14056ed2107c98fbad6a9fdafec58d0a9bf855c817ba6e0 · sha256:0ea54e60cb944a63… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:41e5bb63dc77ceccf14056ed2107c98fbad6a9fdafec58d0a9bf855c817ba6e0 · sha256:0ea54e60cb944a63… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/gotenberg/gotenberg/security/advisories/GHSA-4vmc-gm8v-m35h","tags":["x_refsource_CONFIRM"],"url":"https://github.com/gotenberg/gotenberg/security/advisories/GHSA-4vmc-gm8v-m35h"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:41e5bb63dc77ceccf14056ed2107c98fbad6a9fdafec58d0a9bf855c817ba6e0 · sha256:0ea54e60cb944a63… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/gotenberg/gotenberg/security/advisories/GHSA-4vmc-gm8v-m35h"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:41e5bb63dc77ceccf14056ed2107c98fbad6a9fdafec58d0a9bf855c817ba6e0 · sha256:0ea54e60cb944a63… · /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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