CVE Explorer

CVE-2026-28497

TinyWeb is a web server (HTTP, HTTPS) written in Delphi for Win32. Prior to version 2.03, an integer overflow vulnerability in the string-to-integer conversion routine (_Val) allows an unauthenticated remote attacker to bypass Content-Length restrictions and perform HTTP Request Smuggling. This can lead to unauthorized access, security filter bypass, and potential cache poisoning. The impact is critical for servers using persistent connections (Keep-Alive). This issue has been patched in version

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:88eafaa0801183891033757b4ba50579912256a998057f536257404fb5c4f98d

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-190","description":"CWE-190: Integer Overflow or Wraparound","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:4f65a8e0cb2edda08c10e46689963303aa3409b52ea482aa56792841c10b7475 · sha256:85f7368201f0950b… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-444","description":"CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:4f65a8e0cb2edda08c10e46689963303aa3409b52ea482aa56792841c10b7475 · sha256:85f7368201f0950b… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion

{"product":"TinyWeb","vendor":"maximmasiutin","versions":[{"status":"affected","version":"< 2.03"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:4f65a8e0cb2edda08c10e46689963303aa3409b52ea482aa56792841c10b7475 · sha256:85f7368201f0950b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:4f65a8e0cb2edda08c10e46689963303aa3409b52ea482aa56792841c10b7475 · sha256:85f7368201f0950b… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions

{"cweId":"CWE-190","description":"CWE-190: Integer Overflow or Wraparound","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:4f65a8e0cb2edda08c10e46689963303aa3409b52ea482aa56792841c10b7475 · sha256:85f7368201f0950b… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-444","description":"CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:4f65a8e0cb2edda08c10e46689963303aa3409b52ea482aa56792841c10b7475 · sha256:85f7368201f0950b… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/maximmasiutin/TinyWeb/commit/d2edd0322c3d74beee0a6c0191299b8946695d4e","tags":["x_refsource_MISC"],"url":"https://github.com/maximmasiutin/TinyWeb/commit/d2edd0322c3d74beee0a6c0191299b8946695d4e"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:4f65a8e0cb2edda08c10e46689963303aa3409b52ea482aa56792841c10b7475 · sha256:85f7368201f0950b… · /containers/cna/references/1

{"name":"https://github.com/maximmasiutin/TinyWeb/security/advisories/GHSA-rp8j-cx7r-mw9f","tags":["x_refsource_CONFIRM"],"url":"https://github.com/maximmasiutin/TinyWeb/security/advisories/GHSA-rp8j-cx7r-mw9f"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:4f65a8e0cb2edda08c10e46689963303aa3409b52ea482aa56792841c10b7475 · sha256:85f7368201f0950b… · /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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