CVE-2026-26342
Tattile Smart\+ Firmware ≤ 1.181.5
Raw vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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:X/R:X/V:X/RE:X/U:XSummary
CVE-2026-26342 is a high-severity Insufficient Session Expiration (CWE-613) vulnerability in Tattile Smart\+ Firmware. Its CVSS base score is 8.7 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Browser Session Hijacking (T1185); ranked in the top 50% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to AC-12 (Session Termination) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2026-26342 affects the firmware of Tattile Smart+, Vega, and Basic device families in versions 1.181.5 and prior. The vulnerability stems from an authentication token (X-User-Token) implemented with insufficient expiration, allowing the token to remain valid indefinitely until explicitly revoked. This flaw, classified under CWE-613 (Insufficient Session Expiration), has a CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating critical severity due to its potential for high-impact network-based exploitation without prerequisites.
An unauthenticated attacker can exploit this vulnerability by obtaining a valid token through methods such as interception, exposure in logs, or reuse on a shared system. With the token, the attacker gains persistent access to the device's management interface, enabling unauthorized control over device functions and exposure of sensitive data until the token is manually revoked by an administrator.
For mitigation details, security practitioners should refer to advisories from VulnCheck (https://www.vulncheck.com/advisories/tattile-smart-vega-basic-insufficient-session-token-expiration), Zero Science (https://www.zeroscience.mk/en/vulnerabilities/ZSL-2026-5976.php), and the vendor Tattile (https://www.tattile.com/), published around the CVE disclosure on 2026-02-24.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-8553
Vulnerability Data
Tattile Smart+, Vega, and Basic device families firmware versions 1.181.5 and prior implement an authentication token (X-User-Token) with insufficient expiration. An attacker who obtains a valid token (for example via interception, log exposure, or token reuse on a shared system)…
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can continue to authenticate to the management interface until the token is revoked, enabling unauthorized access to device functions and data.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
AC-12 directly requires automatic session termination after a defined period, structurally preventing reuse of expired session identifiers.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Credential lifecycle management directly includes enforcing session expiration to prevent reuse.
Authorization policy enforcement and review covers terminating stale sessions to limit access scope.
Authentication mechanisms can incorporate session timeout checks but do not inherently address expiration policy.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Automatic termination of inactive sessions and limits on connection duration shrink the window during which a hijacked or unattended authenticated session can be exploited.