CVE-2026-109823

Host filesystem path disclosure via DNS rebinding

CVSS score

2.3

EPSS probability

—

Risk score

0.2

Published

4 h ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

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Vulnerability description

DayBreach AI Explanation

Verified against sources

CVE-2026-109823: Tidewave Host Filesystem Path Disclosure

Sources read

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

CVE-2026-109823 is a filesystem path disclosure vulnerability in the tidewave application caused by a missing Host header check. Attackers can read sensitive data via DNS rebinding, revealing local usernames and project layouts.

Why does it matter?

This vulnerability exposes application configuration paths and local usernames. It can be exploited via DNS rebinding to allow external web pages to read sensitive information.

What should be done?

Follow the vendor advisory for updates
Review the available patch references
Update the tidewave version

Chain of evidence and sources2 verified claims

CVE-2026-109823, 0.8.0 ile 0.9.2 arasındaki tidewave sürümlerini etkiler.

S0 · daybreach-canonical S1 · cvelist

Yanıtlar Host başlığını kontrol etmediği için DNS rebinding ile yol bilgisi okunabilir.

S0 · daybreach-canonical S1 · cvelist

Show the technical text from the sources

An attacker can read the name of filesystem paths of your application present via Tidewave configuration via /tidewave/connect or via the rendered toolbar. Neither response checks the Host header. A web page that rebinds its own domain to the loopback address can therefore read the tag with a same-origin request, which carries no Origin header. The paths usually reveal the local username and the project layout. This issue affects tidewave: from 0.8.0 before 0.9.2.

CVSS vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CWE: CWE-497

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-109823 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	tidewave-ai	tidewave	View
2	tidewave-ai	tidewave	View

Total affected vendors: 1|Products: 2

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
2.3	CVSS V40	LOW	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/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:X	NVD
2.3	CVSS V4_0	LOW	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	CVE CNA

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

cvelist

Fix commit 8015953 in tidewave-ai/tidewave_phoenix

Open source

reference

Fix commit 8015953 in tidewave-ai/tidewave_phoenix

Open source

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Apply the official update named in the evidence only to the matching product and version.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-109823 is associated with the following CWEs:

CWE-497: Common Weakness Enumeration Entry CWE-497

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-109823 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsGerekmiyor

User—

Official Sources and Advisories

EEF CNA record for CVE-2026-109823vendor-advisory OSV record EEF-CVE-2026-109823vendor-advisory Introducing commit f78352b in tidewave-ai/tidewave_phoenixvendor-advisory Fix commit 8015953 in tidewave-ai/tidewave_phoenixpatch

CVSS Vector Radar Chart

2.3 / 10

Vulnerability Scoring Details

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone required

User InteractionP

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)P

Availability (Erişilebilirlik)None

Yama doğrulandı

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

tidewave-ai

Weakness Type (CWE & CAPEC)

CWE-497

Get this vulnerability through the API

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