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VulnerabilityPublished

CVE-2026-26002: OSC ondemand · Injection

Affects OSC ondemandSource CVE Database V5

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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

CVSS 4.0 base score
6.3Medium
How severe the flaw is on the 0–10 CVSS scale.
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:U

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
OSCondemandAffected
  • >=4.1.0 <4.1.3
Fixed in
  • 4.1.3
OSCondemandAffected
  • <4.0.9
Fixed in
  • 4.0.9
GitHubosc/ondemandpkg:github/osc/ondemandOther threatsAffected
  • <4.0.9
Fixed in
  • 4.0.9

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.

References

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