CVE-2026-104331: Langflow OSS is affected by multiple vulnerabilities
Noroxi assessment
Priority: Monitor (action score 21/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.16% (FIRST EPSS).
- Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
- According to the record, no fixed version is available yet.
Low priority for now. Update when a fix is released; follow the vendor's advisory.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
IBM Langflow OSS 1.0.0 through 1.12.3 is vulnerable to server-side request forgery (SSRF). This may allow an authenticated attacker to send unauthorized requests from the system, potentially leading to network enumeration or facilitating other attacks.
- Published
- Oct 29, 2026
- Updated
- Oct 29, 2026
- EPSS
- 0.1% · 6th percentile
- CWE
- CWE-918
Report tools
Action score
21
Monitor
Low priority for now.
- CVSS
- 21 / 40 · 5.4 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.1%
CNA vs NVD score
- NVD
- —
- CNA · ibm
- 5.4
- NVD has not scored this yet; the score shown is the CNA’s.
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- No fixed version yet
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
—
Versions reported by the vendor
Affected version ranges reported by the assigning authority (ibm). Independent of NVD's CPE analysis and usually ahead of it.
IBM Langflow OSS
- 1.0.0 and later · up to and including 1.12.3affected · semver
Same product
ibm: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-93680Langflow OSS is affected by multiple vulnerabilities60This week
- CVE-2026-104339Langflow OSS is affected by multiple vulnerabilities39Monitor
- CVE-2026-107327Langflow OSS is affected by multiple vulnerabilities39Monitor
Published before and after this one in the same product
- ← EarlierCVE-2026-107328Oct 29, 2026 · Langflow OSS is affected by multiple vulnerabilities39Monitor
- ← EarlierCVE-2026-107326Oct 29, 2026 · Langflow OSS is affected by multiple vulnerabilities35Monitor
- Later →CVE-2026-104328Oct 29, 2026 · Langflow OSS is affected by multiple vulnerabilities35Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2026-1294445 days apartIncomplete Security Scanner Blocklist Enables Network-Based Code Execution38Monitor
- CVE-2026-1276545 days apartLangflow OSS is affected by server-side request forgery due to missing URL validation in flow components26Monitor
- CVE-2026-1276745 days apartLangflow is vulnerable to server-side request forgery due to missing egress validation on server-side URL fetches26Monitor
- CVE-2026-1276645 days apartLangflow is vulnerable to Server-Side Request Forgery due to missing or bypassable URL validation in multiple components21Monitor
- CVE-2026-1025900 days apartLangflow OSS is affected by multiple vulnerabilities20Monitor
- CVE-2026-1043150 days apartLangflow OSS is affected by multiple vulnerabilities17Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
- CVE-2026-936800 days apartLangflow OSS is affected by multiple vulnerabilities60This week
Bug bounty scope
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- low · data can be read
- Integrity
- low · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- Low
- Availability impact
- None
Weakness class (CWE)
CWE-918 · Server-Side Request Forgery (SSRF)CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
cna
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Change log
- Exploit maturity— → none
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References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.