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CVE-2026-29046

TinyWeb is a web server (HTTP, HTTPS) written in Delphi for Win32. Prior to version 2.04, TinyWeb accepts request header values and later maps them into CGI environment variables (HTTP_*). The parser did not strictly reject dangerous control characters in header lines and header values, including CR, LF, and NUL, and did not consistently defend against encoded forms such as %0d, %0a, and %00. This can enable header value confusion across parser boundaries and may create unsafe data in the CGI ex
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d8c36188fe0ee2a28e40c1fcf1850e05b41ead004c2ea28865aa026d09496c19
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 4 assertions

{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e5d11abd4e4aed7eaf8a1af43826382e9ff20ad9b4b7aa5d56b247bc80bd070e · sha256:3a9180eeb1f73179… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-114","description":"CWE-114: Process Control","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e5d11abd4e4aed7eaf8a1af43826382e9ff20ad9b4b7aa5d56b247bc80bd070e · sha256:3a9180eeb1f73179… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-93","description":"CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e5d11abd4e4aed7eaf8a1af43826382e9ff20ad9b4b7aa5d56b247bc80bd070e · sha256:3a9180eeb1f73179… · /containers/cna/problemTypes/3/descriptions/0

{"cweId":"CWE-74","description":"CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e5d11abd4e4aed7eaf8a1af43826382e9ff20ad9b4b7aa5d56b247bc80bd070e · sha256:3a9180eeb1f73179… · /containers/cna/problemTypes/2/descriptions/0

Affected products and versions

1 source assertion
{"product":"TinyWeb","vendor":"maximmasiutin","versions":[{"status":"affected","version":"< 2.04"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e5d11abd4e4aed7eaf8a1af43826382e9ff20ad9b4b7aa5d56b247bc80bd070e · sha256:3a9180eeb1f73179… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.2,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","subAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"HIGH","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e5d11abd4e4aed7eaf8a1af43826382e9ff20ad9b4b7aa5d56b247bc80bd070e · sha256:3a9180eeb1f73179… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

4 source assertions
{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e5d11abd4e4aed7eaf8a1af43826382e9ff20ad9b4b7aa5d56b247bc80bd070e · sha256:3a9180eeb1f73179… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-114","description":"CWE-114: Process Control","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e5d11abd4e4aed7eaf8a1af43826382e9ff20ad9b4b7aa5d56b247bc80bd070e · sha256:3a9180eeb1f73179… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-93","description":"CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e5d11abd4e4aed7eaf8a1af43826382e9ff20ad9b4b7aa5d56b247bc80bd070e · sha256:3a9180eeb1f73179… · /containers/cna/problemTypes/3/descriptions/0
{"cweId":"CWE-74","description":"CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e5d11abd4e4aed7eaf8a1af43826382e9ff20ad9b4b7aa5d56b247bc80bd070e · sha256:3a9180eeb1f73179… · /containers/cna/problemTypes/2/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/maximmasiutin/TinyWeb/commit/53aa8b6e5146491d7be57920e3fc50d7a34e4d5a","tags":["x_refsource_MISC"],"url":"https://github.com/maximmasiutin/TinyWeb/commit/53aa8b6e5146491d7be57920e3fc50d7a34e4d5a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e5d11abd4e4aed7eaf8a1af43826382e9ff20ad9b4b7aa5d56b247bc80bd070e · sha256:3a9180eeb1f73179… · /containers/cna/references/1
{"name":"https://github.com/maximmasiutin/TinyWeb/security/advisories/GHSA-r3gf-pg2c-m7mc","tags":["x_refsource_CONFIRM"],"url":"https://github.com/maximmasiutin/TinyWeb/security/advisories/GHSA-r3gf-pg2c-m7mc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e5d11abd4e4aed7eaf8a1af43826382e9ff20ad9b4b7aa5d56b247bc80bd070e · sha256:3a9180eeb1f73179… · /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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