CVE-2026-121881
Posit Workbench code-server session-state RPC (get_last_seen) SQL injection
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Posit Workbench code-server session-state RPC (get_last_seen) SQL injection
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.
- Record
CVE-2026-121881- CVSS 4.0
- 5.7 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/AU:Y/R:A/V:C/RE:M/U:Amber - Weakness
- CWE-89
- Updated
- 2026-11-06
EUVDEUVD-2026-118305
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.
- Record
EUVD-2026-118305- CVSS 4.0
- 5.7 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/AU:Y/R:A/V:C/RE:M/U:Amber - Updated
- 2026-11-06
GitHub AdvisoriesGHSA-9mg6-47p6-97j7
SQL injection vulnerability in the get_last_seen code-server session-state RPC in Posit Software,...
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.
- Record
GHSA-9mg6-47p6-97j7- CVSS 4.0
- 5.7 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:Amber - Weakness
- CWE-89
- Updated
- 2026-11-06
NVD
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.
- Record
CVE-2026-121881- CVSS 4.0
- 5.7 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:Amber - Weakness
- CWE-89
- Updated
- 2026-11-06
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| published | EUVD | |
| published | EUVD, NVD | |
| aliases, references | CVE List, GitHub Advisories, NVD | |
| cwes, references, severity, title | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-121881 is a medium vulnerability (CVSS 5.7) in Posit Software, Pbc Workbench, published November 6, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.27%, the 18th percentile. No source names a fixed version.