CVE-2026-121881

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 61/100
Published: 2026-11-06 Modified: 2026-11-06 First seen: 2026-11-06 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: X
AT: None
VC: High
VI: None
VA: None

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.

Affected Software (2)

VendorProductVersion
Posit Software, PBC Posit Workbench 0 < 2026.08.0
Posit Software, PBC Posit Workbench 0 < 2026.08.0

References & Advisories (2)

Bug Bounty Relevance

61 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

5.7 / 10.0 v4.0
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

EPSS — Exploitation Probability

0.27%
Raw Score 0.002650
Percentile 18.5%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00265
2026-11-12
0.00265
2026-11-10
0.00265
2026-11-09
0.00265
2026-11-08
0.00265
2026-11-07
0.00265

Intelligence Sources

mitre ref →
nvd ref →