PatchTheCEVCVE-2026-34884: SSRF via set_skywalking_url Tool and GraphQL expression injection vulnerability in Apache SkyWalking MCP.
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CRITICAL 9.8REMOTEWATCHLISTUPGRADE
CVE-2026-34884 is a critical-severity flaw (CVSS 9.8) affecting skywalking mcp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
SSRF via set_skywalking_url Tool and GraphQL expression injection 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
- Critical severity
- Remotely exploitable, no login, no user action
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.7% (top 48%) |
| CISA exploited list | No |
| Weakness | CWE-918 |
| Published | 2026-08-18 |
| Last modified | 2026-10-22 |
Publisher (CNA): Apache Software Foundation · Vendor: apache
Am I affected?
Timeline
- Published CVE record published
- Updated 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.
Exact fixes by distribution
Fedora 46 · python-streamlink · FIXED · 8.6.2-1.fc46 · FEDORA-2026-a56fcfdc08 · source
sudo dnf upgrade --advisory=FEDORA-2026-a56fcfdc08
Fedora ELN · valgrind · FIXED · 3.28.0-1.eln159 · FEDORA-2026-c593ef1d15 · source
sudo dnf upgrade --advisory=FEDORA-2026-c593ef1d15
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.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.