Label Studio before 1.23.2 SSRF and Token Disclosure via Image Export Downloads
- Exploited
- No known exploitation
- Fix
- Fixed in 1.23.2, 2.1.2
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 1.23.2, 2.1.2.
- Exploitation?/40Exploitation: unknown (data gap). No CISA SSVC exploitation rating yet
- Exposure3/25Reachable over the network · Data gap: No advisory context yet
- Reach?/20Reach: unknown (data gap). No tracked technology or package matched
- Severity6.3/10CVSS 6.3
- No patch0/5No signal
What would change the score
- Would score about 64 if added to CISA KEV
- Would score about 59 if CISA's SSVC rates exploitation active
- Would score about 28 if advisories confirm default setups are exposed
CVE-2026-121561 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 6.3 (medium) and affects label-studio and label-studio-sdk; fixed in 1.23.2 and 2.1.2.
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 9/100 · provisional
- Fix
- Fixed in 1.23.2, 2.1.2
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Label Studio before 1.23.2 (label-studio-sdk before 2.1.2) contains a server-side request forgery vulnerability that allows authenticated users to read internal URLs through image-bearing export formats. Attackers can import tasks with data.image pointing at internal services, export as YOLO or COCO with images to read responses, and spoof Host to capture the organization owner's API token.
What to do
Upgrade to a fixed version: 1.23.2, 2.1.2.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- HumanSignal label-studio
fixed in 1.23.2
- HumanSignal label-studio-sdk
fixed in 2.1.2
Evidence 7
- Advisory
- Patch
- Patch
- Repository
- Repository
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-121561
Is CVE-2026-121561 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
Which versions are affected by CVE-2026-121561?
label-studio: before 1.23.2. label-studio-sdk: before 2.1.2.Source: cve.now feed data
How do I fix CVE-2026-121561?
Upgrade to a fixed version: 1.23.2, 2.1.2.Source: cve.now feed data