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  4. CVE 2026 119755 tasmota 1600 csrf via referer header validation
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Back to active CVEs
High · CVSS 7.5CVE-2026-119755

Tasmota 16.0.0 CSRF via Referer Header Validation BypassCVE-2026-119755

Answer in brief

CVE-2026-119755 records a High severity (CVSS 7.5) vulnerability in Tasmota 16.0.0 CSRF via Referer Header Validation Bypass. The current sources do not mark it as known exploited. The current feed maps arendst/Tasmota (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 9, 2026Updated Nov 9, 2026Source checked Nov 9, 2026First seen by HOL Nov 9, 2026Material review Nov 9, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 7.5. 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 arendst/Tasmota (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
arendst/Tasmotageneric>=0 <=16.0.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for arendst/Tasmota.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Nov 9, 2026

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

  2. Source modified

    Nov 9, 2026

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

  3. First seen by HOL

    Nov 9, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

Tasmota through 16.0.0, fixed in commit 1cb7ebc, contains a cross-site request forgery vulnerability that allows unauthenticated attackers to bypass Referer-based CSRF protection in HttpCheckPriviledgedAccess() by crafting a Referer header where the device hostname or IP appears as a substring immediately after http://.evil.com/. Attackers can lure an administrator on the device's network to a malicious page to issue arbitrary console commands and reconfigure Wi-Fi, MQTT, settings, or firmware on devices lacking a WebPassword.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
CSRF
EPSS
Not reported
CWE IDs
CWE-352
Source
CVE List V5
Source checked
Nov 9, 2026
References
2 linked sources
Open source record