CVE-2026-93559Public exploitNetwork attack vector

Unauthenticated API access via unprotected route mounting

Published Sep 18, 2026 · Updated Sep 18, 2026

Missing authentication in Forget-C Jellyfish 0.1.0-alpha and 0.2.0 through 0.3.2 allows remote attackers to alter API data. The application mounts every v1 router without an authentication middleware or dependency, while dependencies.py supplies only database and LLM objects. Exposure requires a network-reachable backend; anonymous callers can overwrite provider credentials, host files, delete projects, and trigger generation tasks.

CVSS severity7.3
High
EPSS probability0.65%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Forget-C Jellyfish 0.1.0-alpha and 0.2.0 through 0.3.2 allows remote attackers to alter API data. The application mounts every v1 router without an authentication middleware or dependency, while dependencies.py supplies only database and LLM objects. Exposure requires a network-reachable backend; anonymous callers can overwrite provider credentials, host files, delete projects, and trigger generation tasks.

The record

CVE
CVE-2026-93559
Published
Sep 18, 2026
Updated
Sep 18, 2026
Vendor
Forget-C
Product
Jellyfish
Classifications
CWE-287, CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.1.0-alpha
  2. Affected versionversion=0.2.0
  3. Affected versionversion=0.3.0
  4. Affected versionversion=0.3.1
  5. Affected versionversion=0.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Forget-C · Jellyfishversion=0.1.0-alpha; version=0.2.0; version=0.3.0; version=0.3.1; version=0.3.2

Published CVSS scores

7.5NVD, CNA-suppliedAV:N/AC:L/Au:N/C:P/I:P/A:P
7.3NVD, CNA-suppliedCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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