CVE-2026-64619
CVE-2026-64619 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-348.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v4: 8.7
- EPSS exploit prediction: 0% (10th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-348
- Published:
- Last modified:
Description
FileCodeBox before 2.4 contains a rate-limit bypass vulnerability in the IPRateLimit class that allows unauthenticated attackers to circumvent request throttling by supplying attacker-controlled X-Real-IP and X-Forwarded-For headers without verification of trusted reverse proxy origin. Attackers can supply unique spoofed IP values on each request to enumerate all possible share codes and retrieve other users' files without authentication.
Frequently asked questions
- What is CVE-2026-64619?
- FileCodeBox before 2.4 contains a rate-limit bypass vulnerability in the IPRateLimit class that allows unauthenticated attackers to circumvent request throttling by supplying attacker-controlled X-Real-IP and X-Forwarded-For headers without verification of trusted reverse proxy origin. Attackers can supply unique spoofed IP values on each request to enumerate all possible share codes and retrieve other users' files without authentication.
- How severe is CVE-2026-64619?
- CVE-2026-64619 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2026-64619 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-64619?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-64619 published?
- CVE-2026-64619 was published on 2026-07-20 and last updated on 2026-07-23.
References
- https://github.com/vastsa/FileCodeBox/commit/1b6d8e7277d3cfa34dc7a85803731d927b2147da
- https://github.com/vastsa/FileCodeBox/issues/479
- https://github.com/vastsa/FileCodeBox/releases/tag/V2.4
- https://www.vulncheck.com/advisories/filecodebox-anti-bruteforce-rate-limit-bypass-via-spoofed-headers
Other CWE-348 vulnerabilities
- CVE-2026-48772 — Critical (CVSS 10.0): ProxySQL is a proxy for MySQL and its forks, as well as PostgreSQL. In versions 2.0.0 through 3.0.8, the ProxySQL MySQL…
- CVE-2026-58122 — Critical (CVSS 9.1): Hermes WebUI before 0.51.307 contains an authentication bypass vulnerability that allows unauthenticated remote…
- CVE-2026-12249 — Critical (CVSS 9.0): An issue was discovered in Canonical ADSys upstream versions through v0.16.2. During Active Directory Certificate…
- CVE-2025-69240 — High (CVSS 8.8): Raytha CMS allows an attacker to spoof `X-Forwarded-Host` or `Host` headers to attacker controlled domain. The attacker…
- CVE-2025-55292 — High (CVSS 8.2): Meshtastic is an open source mesh networking solution. In the current Meshtastic architecture, a Node is identified by…
- CVE-2026-63770 — High (CVSS 7.5): Glance through 0.8.5 contains an IP address spoofing vulnerability in the authentication handler that allows…