Security readout for executives and security teams
Plain-English summary
CVE-2026-3268 is a broken access control issue in PSI Probe versions up to 5.3.0, affecting session attribute removal. A remote authenticated user may manipulate session attributes in ways they should not be allowed to. Public exploit information is referenced, but the sources do not show confirmed active exploitation.
Executive priority
Treat as a moderate-priority application security issue. It is not currently confirmed as actively exploited, but public exploit information and remote authenticated reachability justify prompt inventory, access restriction, and remediation tracking.
Technical view
The issue is reported in psi-probe-core/src/main/java/psiprobe/controllers/sessions/RemoveSessAttributeController.java within the Session Attribute Handler. VulDB assigns CVSS 2.0 score 5.5: network exploitable, low complexity, authentication required, partial integrity and availability impact, no confidentiality impact. CWE mappings include CWE-266 and CWE-284.
Likely exposure
Exposure is limited to environments running PSI Probe 5.0, 5.1, 5.2, or 5.3.0 where an attacker can authenticate to the application. Internet exposure raises urgency, but authentication is required according to the CVSS vector.
Exploitation context
The source bundle states the exploit is public and may be used. CVSS marks exploit maturity as proof-of-concept. There is no KEV listing and no cited source confirming active exploitation in the wild.
Researcher notes
Evidence is mainly from VulDB/CVE-style reporting. The affected function is described as unknown within RemoveSessAttributeController.java. Vendor response and official patch status are not documented in the provided sources, so avoid assuming a fixed version until upstream guidance is available.
Mitigation direction
- Identify all PSI Probe instances and versions.
- Prioritize review of PSI Probe 5.0 through 5.3.0.
- Restrict PSI Probe access to trusted administrators and networks.
- Review vendor or project guidance for an official fix.
- Monitor for unexpected session attribute removal activity.
Validation and detection
- Confirm whether PSI Probe is deployed in the environment.
- Verify deployed PSI Probe version numbers.
- Review user roles with access to session management functions.
- Check logs for unusual authenticated session administration activity.
- Track vendor, CVE, and VulDB updates for remediation details.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-266: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-3268 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.5 (2.0)
- Known Exploited
- No
- Published
Vector: AV:N/AC:L/Au:S/C:N/I:P/A:P/E:POC/RL:ND/RC:UR
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
AV:N/AC:L/Au:S/C:N/I:P/A:P/E:POC/RL:ND/RC:UR84.9Primary CVE scoreVulnerability scoring details
Base CVSS 2.0 score
5.5MediumVector: AV:N/AC:L/Au:S/C:N/I:P/A:P/E:POC/RL:ND/RC:UR
Source materials
- CVE List V5 sourceCVE List V5
- VDB-347992 | psi-probe PSI Probe Session Attribute RemoveSessAttributeController.java access controlCVE reference · vdb-entry
- VDB-347992 | CTI Indicators (IOB, IOC, TTP, IOA)CVE reference · signature, permissions-required
- Submit #758664 | Psi Probe <=5.3.0 Broken Access ControlCVE reference · third-party-advisory
- https://github.com/AnalogyC0de/public_exp/issues/14CVE reference · exploit, issue-tracking
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Incorrect Privilege Assignment
Incorrect Privilege Assignment represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.