CVE-2026-121881 Posit Workbench code-server session-state RPC (get_last_seen) SQL injection
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-121881?
CVE-2026-121881 is a medium-severity vulnerability in Posit Workbench, published on 6 Nov 2026.
Official description
SQL injection vulnerability in the get_last_seen code-server session-state RPC in Posit Software, PBC Posit Workbench before 2026.08.0 allows authenticated users to read arbitrary data from the Workbench database via the sessionIds parameter.
NOTE: exploitation requires a valid authenticated session; no administrative privileges are needed. The vulnerability is limited to disclosure of database contents.
Weakness: CWE-89
Which versions are affected by CVE-2026-121881?
How do I fix CVE-2026-121881?
No fix has been published for CVE-2026-121881 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-121881 being exploited?
There is no known exploitation of CVE-2026-121881 in the wild and no public exploit code.
Sources
Also known as GHSA-9mg6-47p6-97j7.