VulnerabilityPublished 14 Aug 2026Updated 18 Aug 2026

CVE-2026-19763: DTStack Taier · Path Traversal

Affects DTStack TaierSource CVE Database V5

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Not known to be exploited · CVSS 5.1 Medium · fixed in 1.5.0 : update DTStack Taier when convenient.

Data as of 10 Nov 2026, 23:24 UTC

CVSS 4.0 base score

5.1Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 1.5.0

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

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: High
User Interaction: None
Vulnerable system confidentiality: None
Vulnerable system integrity: Low
Vulnerable system availability: Low
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: High: The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact to the Vulnerable System.
Vulnerable system availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the Vulnerable System are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 14 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
DTStackTaier	Affected =1.4.0	Fixed in–
GitHubdtstack/Taier`pkg:github/dtstack/Taier`Other threats	Affected =1.4.0	Fixed in–

CPE configurations (1)

cpe:2.3:a:dtstack:taier:*:*:*:*:*:*:*:*

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AI-suggested

Upgrade DTStack Taier to version 1.5.0, which contains the official fix for this vulnerability. No other mitigation is indicated or required.

Description

A vulnerability was determined in DTStack Taier 1.4.0. Affected by this issue is the function FileUtils.deleteDirectory of the file ClusterController.java of the component Cluster Creation. This manipulation of the argument clusterName causes path traversal. Remote exploitation of the attack is possible. Upgrading to version 1.5.0 can resolve this issue. Patch name: ec8c59c76aceb04ab3080543ab2d9c6a4b674729. The affected component should be upgraded.

Impact

An attacker with high privileges can exploit this vulnerability remotely to perform path traversal via the clusterName argument, potentially deleting arbitrary directories. The CVSS 4.0 base score is 5.1 (medium severity), reflecting network attack vector, low attack complexity, no user interaction, and limited impact on confidentiality and availability.

Summary

This vulnerability in DTStack Taier 1.4.0 arises from improper handling of the clusterName argument in the FileUtils.deleteDirectory function of ClusterController.java. The manipulation enables path traversal, potentially allowing an attacker with high privileges to delete arbitrary directories remotely. The vulnerability is fixed in version 1.5.0, as indicated by the patch identified by commit ec8c59c76aceb04ab3080543ab2d9c6a4b674729.

References

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