CVE-2026-30778: The SkyWalking OAP /debugging/config/dump endpoint may leak sensitive configuration information of MySQL/Postg

This month

HIGH 7.5REMOTEWATCHLISTUPGRADE

CVE-2026-30778 is a high-severity flaw (CVSS 7.5) affecting skywalking. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The SkyWalking OAP /debugging/config/dump endpoint may leak sensitive configuration information of MySQL/PostgreSQL. This issue affects Apache SkyWalking: from 9.7.0 through 10.3.0. Users are recommended to upgrade to version 10.4.0, which fixes the issue.

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-202
Published	2026-04-15
Last modified	2026-10-26

Publisher (CNA): Apache Software Foundation · Vendor: apache

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-15 11:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

apache skywalking UPGRADE

Affected: >= 9.7.0 and < 10.4.0

Fixed in: 10.4.0

Safe to downgrade to: a release before 9.7.0

1. Check installed version

apt-cache policy skywalking || rpm -q skywalking || skywalking --version

2. UPGRADE to 10.4.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade skywalking

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade skywalking

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 9.7.0 (Debian / Ubuntu)

apt-cache madison skywalking sudo apt install skywalking=<VERSION_BEFORE_9.7.0> sudo apt-mark hold skywalking

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list skywalking sudo dnf downgrade skywalking-<VERSION_BEFORE_9.7.0> sudo dnf versionlock add skywalking

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-30778?

skywalking: upgrade to 10.4.0. Exact commands for each OS are on this page.

Is CVE-2026-30778 being exploited?

CVE-2026-30778 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-30778 affect?

CVE-2026-30778 affects skywalking. Severity is high (CVSS 7.5). The SkyWalking OAP /debugging/config/dump endpoint may leak sensitive configuration information of MySQL/PostgreSQL. This issue affects Apache SkyWalking: from 9.7.0 through 10.3.0. Users are recommended to upgrade to version 10.4.0, whic

How urgent is CVE-2026-30778?

Priority 48/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

MySQL vulnerabilities · PostgreSQL vulnerabilities

References

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