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  4. CVE 2026 121881 posit workbench code server session state rpc
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Back to active CVEs
Medium · CVSS 5.7CVE-2026-121881

Posit Workbench code-server session-state RPC (get_last_seen) SQL injectionCVE-2026-121881

Answer in brief

CVE-2026-121881 records a Medium severity (CVSS 5.7) vulnerability in Posit Workbench code-server session-state RPC (get_last_seen) SQL injection. The current sources do not mark it as known exploited. The current feed maps Posit Software, PBC/Posit Workbench (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 6, 2026Updated Nov 6, 2026Source checked Nov 6, 2026First seen by HOL Nov 6, 2026Material review Nov 6, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.7
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 5.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Posit Software, PBC/Posit Workbench (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Posit Software, PBC/Posit Workbenchgeneric>=0 <2026.08.02026.08.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Posit Software, PBC/Posit Workbench.
  2. 2Review the reported fix. Source-reported solution: Upgrade to Posit Workbench 2026.08.0 or later. The patched release binds the caller-supplied session identifiers as query parameters instead of concatenating them into the SQL statement.

Evidence timeline and material changes

  1. Published upstream

    Nov 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 6, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 6, 2026

Sources and claim methodology

  • Source referencedocs.posit.co
  • Source referencetrust.posit.co
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • RStudio Server / Posit Workbench localhost port-proxy does not enforce per-session port ownershipSame posit software, pbc/posit workbench package
  • Wazuh before 4.14.9 SQL Injection via WazuhDBBackend _substitute_paramsAlso CWE-89
  • Craft CMS 4.0.0 before 4.18.9 SQL Injection via Element Search EndpointAlso CWE-89
  • Craft CMS 4.0.0 before 4.18.9 Blind SQL Injection via getNext/getPrev CriteriaAlso CWE-89
  • Craft CMS 4.0.0 before 4.18.9 Unauthenticated SQL Injection via GraphQL Eager-Load SelectAlso CWE-89

Record context

Vulnerability class
SQL Injection
EPSS
Not reported
CWE IDs
CWE-89
Source
CVE List V5
Source checked
Nov 6, 2026
References
2 linked sources
Open source record