VulnerabilityPublished 25 Sep 2026Updated 5 Oct 2026

CVE-2026-100391: mhdzumair mediaflow-proxy · Server-Side Request Forgery (SSRF)

Affects mhdzumair mediaflow-proxySource CVE Database V5

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Not known to be exploited · CVSS 8.8 High : upgrade to 2.4.10 soon.

Data as of 8 Nov 2026, 23:24 UTC

CVSS 4.0 base score

8.8High

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 2.4.10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: None
User Interaction: None
Vulnerable system confidentiality: High
Vulnerable system integrity: Low
Vulnerable system availability: None
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: High: There is a total loss of confidentiality, resulting in all information within the Vulnerable System being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.
Vulnerable system integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact to the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 8 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-5j62-5j8p-jpqh

What to do

Upgrade mhdzumair/mediaflow-proxy to 2.4.10.

Affected software

Product	Affected	Fixed in
mhdzumairmediaflow-proxy	Affected <=2.4.9	Fixed in–
GitHubmhdzumair/mediaflow-proxy`pkg:github/mhdzumair/mediaflow-proxy`Other threats	Affected <2.4.10	Fixed in 2.4.10

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, restrict access to the /proxy routes and implement network-level controls to prevent the proxy server from accessing sensitive internal endpoints. Validate and sanitize the 'd' query parameter to ensure only allowed destinations are reachable through the proxy.

Description

MediaFlow Proxy versions up to and including 2.4.9 contain a server-side request forgery (SSRF) vulnerability in the /proxy routes. This vulnerability arises from missing and incomplete validation of the destination URL specified in the 'd' query parameter. An unauthenticated remote attacker can exploit this flaw to make the proxy server send requests to arbitrary internal URLs, including loopback addresses and cloud metadata endpoints, potentially reading full responses from these internal resources.

Impact

An unauthenticated remote attacker can exploit this vulnerability to read sensitive internal resources by making the proxy server issue requests to internal URLs. This can lead to information disclosure from internal services, including cloud metadata endpoints, which may contain sensitive configuration or credential information. The CVSS 4.0 base score is 8.8 (high severity), reflecting the network attack vector, no required privileges or user interaction, and high confidentiality impact.

Summary

CVE-2026-100391 is a server-side request forgery vulnerability affecting MediaFlow Proxy through version 2.4.9. The vulnerability exists due to insufficient validation of the 'd' query parameter in the /proxy routes, allowing remote attackers to supply arbitrary internal URLs. This enables attackers to coerce the proxy server into making requests to internal services such as loopback interfaces and cloud metadata endpoints, thereby exposing sensitive internal data through the proxy's response.

References

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