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CVE-2026-63088

stoatchat before 0.14.0 contains a server-side request forgery (SSRF) vulnerability that allows unauthenticated network-accessible attackers to bypass the DNS-based IP blocklist by exploiting incomplete address validation in the url_is_blacklisted function, which inspects only the first resolved address while the underlying HTTP client iterates all cached addresses.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:daa1354f405b46a5f585721fae8643ce49e43dce3aa4000b9c247823c8a31ce9
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":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.6,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:422104bdaf472bd3059bcbabc018faccb6ede65e10ea93e76c2c10fbcc62993c · sha256:f19116eb167257ce… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:422104bdaf472bd3059bcbabc018faccb6ede65e10ea93e76c2c10fbcc62993c · sha256:f19116eb167257ce… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"affected","product":"stoatchat","repo":"https://github.com/stoatchat/stoatchat","vendor":"stoatchat","versions":[{"lessThan":"0.14.0","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:422104bdaf472bd3059bcbabc018faccb6ede65e10ea93e76c2c10fbcc62993c · sha256:f19116eb167257ce… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.6,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:422104bdaf472bd3059bcbabc018faccb6ede65e10ea93e76c2c10fbcc62993c · sha256:f19116eb167257ce… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.7,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:422104bdaf472bd3059bcbabc018faccb6ede65e10ea93e76c2c10fbcc62993c · sha256:f19116eb167257ce… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:422104bdaf472bd3059bcbabc018faccb6ede65e10ea93e76c2c10fbcc62993c · sha256:f19116eb167257ce… · /containers/cna/problemTypes/0/descriptions/0

Source references

5 source assertions
{"name":"Release Notes","tags":["release-notes","patch"],"url":"https://github.com/stoatchat/stoatchat/releases/tag/v0.14.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:422104bdaf472bd3059bcbabc018faccb6ede65e10ea93e76c2c10fbcc62993c · sha256:f19116eb167257ce… · /containers/cna/references/1
{"name":"GitHub Security Advisory (GHSA-4mcc-p83c-r77q)","tags":["vendor-advisory"],"url":"https://github.com/stoatchat/stoatchat/security/advisories/GHSA-4mcc-p83c-r77q"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:422104bdaf472bd3059bcbabc018faccb6ede65e10ea93e76c2c10fbcc62993c · sha256:f19116eb167257ce… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/stoatchat/stoatchat/security/advisories/GHSA-4mcc-p83c-r77q"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:422104bdaf472bd3059bcbabc018faccb6ede65e10ea93e76c2c10fbcc62993c · sha256:f19116eb167257ce… · /containers/adp/0/references/0
{"name":"Incomplete Fix - GitHub Security Advisory (GHSA-xhww-5g9p-vvq5)","url":"https://github.com/stoatchat/stoatchat/security/advisories/GHSA-xhww-5g9p-vvq5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:422104bdaf472bd3059bcbabc018faccb6ede65e10ea93e76c2c10fbcc62993c · sha256:f19116eb167257ce… · /containers/cna/references/2
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/stoatchat-ssrf-via-dns-based-ip-blocklist-bypass"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:422104bdaf472bd3059bcbabc018faccb6ede65e10ea93e76c2c10fbcc62993c · sha256:f19116eb167257ce… · /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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