Vuln Signal Radar
public-safe defensive signal
Agent JSON
MEDIUMpublic-safe

CVE-2026-64857

NVD: tirreno, a security framework, has a session fixation issue in versions prior to 0.10.0. NVD: During authentication, tirreno validates the user's credentials and establishes the authenticated session, but it does not call session_regenerate_id() afterward. NVD: As a result, the session identifier is not rotated on login, it stays the same before and after authentication.

CVSS
5.3 Severity
MEDIUM EPSS
0.0027 (19) KEV
-

Source-published summary

NVD: tirreno, a security framework, has a session fixation issue in versions prior to 0.10.0. NVD: During authentication, tirreno validates the user's credentials and establishes the authenticated session, but it does not call session_regenerate_id() afterward. NVD: As a result, the session identifier is not rotated on login, it stays the same before and after authentication.

Possible impact

Source describes privilege escalation risk · XSS risk. Possible impact: An attacker may cross a privilege boundary and gain more access than intended.

Affected context

Affected product or version requires source confirmation.

Remediation / advisory

Patch confirmed by source text; fixed version context: v0.10.0..

Why it matters

Source describes privilege escalation risk · XSS risk. Possible impact: An attacker may cross a privilege boundary and gain more access than intended.; CVSS 5.3 (MEDIUM); EPSS percentile 19; not listed in KEV; Patch confirmed by source text; fixed version context: v0.10.0; sources: NVD, OSV.

What to verify

Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.

Exposure hint

exposure unknown

Impact tags

privilege boundary reviewXSS risk

Urgency reasons

vendor advisory presentrecent updateremediation reference present

Source-derived note

Summary derived from NVD / OSV description; unsafe procedural detail is not shown.

Redaction metadata

source summary used
True
fallback summary used
False
unsafe procedural detail present
false
raw source displayed
false
public summary redacted
true

Remediation handoff

Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.

Handoff JSON Handoff Markdown Safe Codex prompt

Safety note

This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.

Official references