CVE-2026-34476: Server-Side Request Forgery via SW-URL Header vulnerability in Apache SkyWalking MCP. This issue affects Apac

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HIGH 7.1WATCHLISTUPGRADE

CVE-2026-34476 is a high-severity flaw (CVSS 7.1) affecting skywalking mcp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Server-Side Request Forgery via SW-URL Header vulnerability in Apache SkyWalking MCP. This issue affects Apache SkyWalking MCP: 0.1.0. Users are recommended to upgrade to version 0.2.0, which fixes this issue.

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-04-13
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

2026-04-13 13:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

apache skywalking mcp UPGRADE

Affected: >= 0.1.0 and < 0.2.0

Fixed in: 0.2.0

Safe to downgrade to: a release before 0.1.0

1. Check installed version

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

2. UPGRADE to 0.2.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade skywalking-mcp

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 0.1.0 (Debian / Ubuntu)

apt-cache madison skywalking-mcp sudo apt install skywalking-mcp=<VERSION_BEFORE_0.1.0> sudo apt-mark hold skywalking-mcp

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

dnf --showduplicates list skywalking-mcp sudo dnf downgrade skywalking-mcp-<VERSION_BEFORE_0.1.0> sudo dnf versionlock add skywalking-mcp

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-2026-34476?

skywalking mcp: upgrade to 0.2.0. Exact commands for each OS are on this page.

Is CVE-2026-34476 being exploited?

CVE-2026-34476 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-2026-34476 affect?

CVE-2026-34476 affects skywalking mcp. Severity is high (CVSS 7.1). Server-Side Request Forgery via SW-URL Header vulnerability in Apache SkyWalking MCP. This issue affects Apache SkyWalking MCP: 0.1.0. Users are recommended to upgrade to version 0.2.0, which fixes this issue.

How urgent is CVE-2026-34476?

Priority 40/100. High severity; On your watchlist

Related CVEs

CVE-2026-34884 CRITICAL 9.8 UPGRADE SSRF via set_skywalking_url Tool and GraphQL expression injection vulnerability in Apache SkyWalking MCP.

References

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