CVE-2026-34884Suited to automated attack · CISA

Apache SkyWalking MCP: SSRF via set_skywalking_url Tool and GraphQL Expression Injection in MCP Server

CVSS score

9.8

EPSS probability

%0.7

Risk score

0.1

Published

2 mo ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.

Checking session…

Vulnerability description

DayBreach CVE AI Research

CVE-2026-34884 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

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.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-34884 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	Apache Software Foundation	Apache SkyWalking MCP	View
2	apache	skywalking mcp	View

Total affected vendors: 2|Products: 2

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
9.8	CVSS V3_1	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CVE ADP
9.8	CVSS V31	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-34884 is associated with the following CWEs:

CWE-918: Server-Side Request Forgery (SSRF)

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-34884 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden

PermissionsGerekmiyor

UserGerekmiyor

Official Sources and Advisories

https://lists.apache.org/thread/s447p6h5dfr02lx17v27phoksgb8mkkpvendor-advisory http://www.openwall.com/lists/oss-security/2026/04/13/5nvd

CVSS Vector Radar Chart

9.8 / 10

Vulnerability Scoring Details

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

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone required

User InteractionNone required

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)None

Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

Apache Software Foundation

apache

Weakness Type (CWE & CAPEC)

CWE-918

Similar Vulnerabilities

10.0

CVE-2021-44228 Actively exploitedImproper input validation in Apache Log4j

Vendorsiemens Product6bk1602-0aa12-0tp0 firmware+16 etkilenen

Patch verified Public Exploits:22EPSS %1004 y ago

9.8

CVE-2017-5638 Actively exploitedstruts2: RCE when performing file upload based on Jakarta Multipart parser

Vendorapache Productstruts

Workaround Public Exploits:10EPSS %1009 y ago

9.8

CVE-2018-11776 Actively exploitedstruts2: Using specific results and namespaces can result in a remote code execution

Vendorapache Productstruts

Workaround Public Exploits:14EPSS %1008 y ago

9.8

CVE-2023-46604 Actively exploitedactivemq-openwire: OpenWire Module: Unbounded deserialization causes ActiveMQ to be vulnerable to a remote code execution (RCE) attack

VendorRed Hat Productred_hat_jboss_fuse_service_works_6:activemq-openwire+8 etkilenen

Partial patch Public Exploits:9EPSS %1003 y ago

9.8

CVE-2020-1938 Actively exploitedVulnerability in Apache Tomcat

Vendorapache Productgeode+16 etkilenen

Patch verified Public Exploits:12EPSS %996 y ago

9.8

CVE-2018-1273 Actively exploitedCode injection in Spring By Pivotal Spring Framework

VendorSpring by Pivotal ProductSpring Framework+10 etkilenen

Patch verified Public Exploits:8EPSS %978 y ago

Get this vulnerability through the API

Affected products, version ranges, exploitation status and patch information in a single request, with a free key.

Get a free key Documentation

curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-34884"