CVE-2026-82278
Authenticated RCE in Bisheng workflow endpoint executing arbitrary Python via exec().
Is CVE-2026-82278 being exploited?
Not confirmed. CVE-2026-82278 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.56% probability of exploitation in the next 30 days.
How severe is CVE-2026-82278?
CVE-2026-82278 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-82278?
Yes. A fix has been recorded for CVE-2026-82278. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-82278 affect?
CVE-2026-82278 affects BISHENG < 2.6.0, BISHENG workflow run_once endpoint (POST /api/v1/workflow/run_once). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-82278?
Upgrade to Bisheng 2.6.0+, restrict access to API, and rotate exposed credentials.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated attackers can POST crafted Code nodes to /api/v1/workflow/run_once to execute arbitrary Python, access filesystem, credentials, and internal network.
Immediate action required
- affected< 2.6.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.