CVE-2026-102354

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Source
https://cve.org/CVERecord?id=CVE-2026-102354
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102354.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-102354
Aliases
  • GHSA-wh78-rcw2-hhg9
Published
2026-10-14T19:00:13Z
Modified
2026-10-17T02:30:32Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
Summary
BentoPDF: SSRF via DNS Rebinding (TOCTOU) in Cloudflare CORS Proxy Worker
Details

BentoPDF is a privacy-focused PDF toolkit that runs in the browser. In versions through 2.8.6, cloudflare/cors-proxy-worker.js performs a DNS-over-HTTPS safety check in hostnameResolvesToPrivate(), as used by isValidCertificateUrl() and isValidTsaUrl(), separately from the outbound fetch(targetUrl, ...). In deployments where PROXY_SECRET validation is not enabled, a direct client that controls authoritative DNS can forge the Origin header, supply a certificate, OCSP, CRL, or TSA URL that passes the proxy's accepted path checks, return a public address during validation, and return a private or link-local address during the later fetch. The endpoint can return allowed response bodies to the attacker, but exploitation requires precise timing, redirects and IP-literal obfuscation are blocked, and network reachability limits the target. This vulnerability is fixed in 2.8.7.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-367",
        "CWE-918"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102354.json"
}
References

Affected packages

Git / github.com/alam00000/bentopdf

Affected ranges

Type
GIT
Repo
https://github.com/alam00000/bentopdf
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
55915a29017a5090a6ea61e61b0f4d899f032923
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "2.8.7"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

v0.*
v0.0.1
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.1.4
v1.1.5
v1.10.0
v1.10.1
v1.10.3
v1.10.4
v1.10.5
v1.11.0
v1.11.1
v1.11.2
v1.14.0
v1.15.1
v1.15.3
v1.15.4
v1.16.0
v1.16.1
v1.2.0
v1.3.0
v1.3.1
v1.3.2
v1.4.0
v1.5.0
v1.5.1
v1.6.0
v1.6.1
v1.6.2
v1.7.0
v1.7.1
v1.7.3
v1.7.4
v1.7.5
v1.7.6
v1.7.7
v1.7.8
v1.7.9
v1.8.0
v1.8.1
v1.9.0
v2.*
v2.0.0
v2.1.0
v2.2.0
v2.2.1
v2.3.0
v2.3.1
v2.3.3
v2.4.0
v2.4.1
v2.5.0
v2.6.0
v2.7.0
v2.8.0
v2.8.1
v2.8.2
v2.8.3
v2.8.4
v2.8.5
v2.8.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102354.json"