VulnerabilityPublished 15 Apr 2026Updated 16 Apr 2026

CVE-2026-30778: Apache SkyWalking · Exposure of Sensitive Information Through Data Queries

Affects Apache SkyWalkingSource CVE Database V5

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Not known to be exploited · CVSS 7.5 High · fixed in 10.4.0 : patch Apache SkyWalking soon.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score

7.5High

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

EPSS: 0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 10.4.0

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

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

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, 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: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 15 Apr 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 29 Oct 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
Apache Software FoundationApache SkyWalking	Affected >=9.7.0 <=10.3.0	Fixed in–
Mavenorg.apache.skywalking/skywalking`pkg:maven/org.apache.skywalking/skywalking`Other threats	Affected =9.7.0 <=10.3.0	Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Users should upgrade Apache SkyWalking to version 10.4.0, which contains the official fix for this vulnerability. Since this is a self-hosted product, applying the vendor-released update is the recommended remediation. Patch status is confirmed by the vendor advisory recommending upgrade to 10.4.0. No additional mitigations are specified.

Description

CVE-2026-30778 is a vulnerability in Apache SkyWalking versions 9.7.0 through 10.3.0 where the /debugging/config/dump endpoint may expose sensitive configuration information related to MySQL and PostgreSQL databases. This exposure can lead to unauthorized access to critical configuration data. The issue is resolved in Apache SkyWalking version 10.4.0, which users are advised to upgrade to. The vulnerability has a CVSS score of 7.

Impact

The vulnerability allows unauthorized users to access sensitive database configuration information via the /debugging/config/dump endpoint. This exposure can compromise confidentiality by revealing critical connection details, potentially facilitating further attacks. There is no indication of impact on integrity or availability. No known exploits have been reported in the wild.

Summary

Apache SkyWalking versions 9.7.0 through 10.3.0 contain a vulnerability identified as CVE-2026-30778, categorized under CWE-202 (Exposure of Sensitive Information Through Data Queries). The vulnerability occurs because the /debugging/config/dump endpoint can leak sensitive configuration details of MySQL and PostgreSQL databases. This information disclosure could aid attackers in further compromising the system. The vendor has addressed this issue in version 10.4.0.

CWE-202Exposure of Sensitive Information Through Data Queries (opens in a new tab)
Base weaknessLikelihood of exploit: Medium
When trying to keep information confidential, an attacker can often infer some of the information by using statistics.
Architecture and Design
This is a complex topic. See the for a good discussion of best practices.
OWASP ASVS 4.0.3
V8.3.8 (opens in a new tab)
V13.4.2 (opens in a new tab)
V7.2.2 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 22 Apr 2026, 23:14 UTC

WeaknessesCWE-202

Technical details

References

Community reviews

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