CVE-2026-26002: OSC ondemand · Injection
Affects OSC ondemandSource CVE Database V5
Not known to be exploited · CVSS 6.3 Medium : upgrade to 4.1.3 or 4.0.9 when convenient.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 46% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.1.3, 4.0.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:UExploitation evidence
Disclosed: evidence found.
CVE published 4 Mar 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 30 Oct 2026.
What to do
Upgrade ondemand to 4.1.3 or 4.0.9; osc/ondemand to 4.0.9.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| OSCondemand | Affected
| Fixed in
|
| OSCondemand | Affected
| Fixed in
|
GitHubosc/ondemandpkg:github/osc/ondemandOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Organizations should immediately upgrade Open OnDemand installations to versions 4.0.9 or 4.1.3 or later to apply the official patches. In addition to patching, implement strict input validation and output encoding on all user-supplied data, especially directory navigation inputs, to prevent injection of special characters. Employ network segmentation and firewall rules to restrict access to HPC portals to trusted users and networks. Monitor logs for unusual directory navigation patterns or injection attempts. Conduct regular security assessments and code reviews focusing on input handling in web applications. Consider deploying web application firewalls (WAFs) with custom rules to detect and block injection payloads targeting this vulnerability. Maintain an incident response plan tailored for HPC environments to quickly address potential exploitation.
Description
Open OnDemand is an open-source high-performance computing portal. The Files application in OnDemand versions prior to 4.0.9 and 4.1.3 is susceptible to malicious input when navigating to a directory. This has been patched in versions 4.0.9 and 4.1.3. Versions below this remain susceptible.