CVE-2026-103291 json
Ghost 3.20.2 before 6.51.0 SSRF via image-size fetch
published last mo. modified last mo. also BIT-ghost-2026-103291 , EUVD-2026-90684 , GHSA-rrq6-9r3c-7w26
- cvss
- 6.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 3%
- public exploits
- 0
- none known
Summary
Ghost versions from 3.20.2 before 6.51.0 contain a server-side request forgery vulnerability in image dimension refetching that allows authenticated staff users to trigger outbound HTTP requests to arbitrary URLs. Attackers can point image cards at attacker-controlled hosts or internal network endpoints to access metadata services and internal resources unavailable from the public internet.
Patch / fix
- bitnami ghost 6.51.0
- TryGhost Ghost 6.51.0
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N |
| CNA | 3.1 | 6.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | ghost | >=3.20.2, <6.51.0 |
6.51.0 |
Affected products
- TryGhost Ghost
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/TryGhost/Ghost/security/advisories/GHSA-rrq6-9r3c-7w26
vendor-advisory, web
-
vulncheck.com
/advisories/ghost-3.20.2-before-6.51.0-ssrf-via-image-size-fetch
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-103291
web
Sources
- CVE List CVE-2026-103291
- NVD CVE-2026-103291
- OSV BIT-ghost-2026-103291
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.