GHSA-fw8g-cg8f-9j28

ADVISORY - github

Summary

Impact

In the Prometheus server's legacy web UI (enabled via the command-line flag --enable-feature=old-ui), the histogram heatmap chart view does not escape le label values when inserting them into the HTML for use as axis tick mark labels.

An attacker who can inject crafted metrics (e.g. via a compromised scrape target, remote write, or OTLP receiver endpoint) can execute JavaScript in the browser of any Prometheus user who views the metric in the heatmap chart UI. From the XSS context, an attacker could for example:

Read /api/v1/status/config to extract sensitive configuration (although credentials / secrets are redacted by the server)
Call /-/quit to shut down Prometheus (only if --web.enable-lifecycle is set)
Call /api/v1/admin/tsdb/delete_series to delete data (only if --web.enable-admin-api is set)
Exfiltrate metric data to an external server

Note that this only affects users who have explicitly enabled the legacy Prometheus web UI using the --enable-feature=old-ui command-line flag.

Patches

https://github.com/prometheus/prometheus/commit/38f23b9075ced1de2b82d2dad8b2bebb1ecd5b7d

Workarounds

If at all possible, disable the legacy web UI by removing the --enable-feature=old-ui command-line flag).

If this is not an option, take the following precautions:

If using the remote write receiver (--web.enable-remote-write-receiver), ensure it is not exposed to untrusted sources.
If using the OTLP receiver (--web.enable-otlp-receiver), ensure it is not exposed to untrusted sources.
Ensure scrape targets are trusted and not under attacker control.
Do not enable admin / mutating API endpoints (e.g. --web.enable-admin-api or web.enable-lifecycle) in cases where you cannot prevent untrusted data from being ingested.
Users should avoid clicking untrusted links, especially those containing functions such as label_replace, as they may generate poisoned label names and values.

References

CVE-2019-10215 — prior stored DOM XSS vulnerability in Prometheus query history, fixed in v2.7.2
CVE-2026-40179 — prior stored DOM XSS vulnerability in Prometheus web UI (hover tooltips and metrics explorer), fixed in v3.11.2

Common Weakness Enumeration (CWE)

ADVISORY - github

CWE-79⁠

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Impacted images

Advisories

Docker

CREATED

14 days ago

UPDATED

3 days ago

ADVISORY ID

CVE-2026-44903

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

Docker

CREATED

14 days ago

UPDATED

6 days ago

ADVISORY ID

GHSA-fw8g-cg8f-9j28

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

GitHub

CREATED

6 days ago

UPDATED

3 days ago

ADVISORY IDGHSA-fw8g-cg8f-9j28⁠

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)

CWE-79⁠

CVSS SCORE

N/Amedium

Chainguard

CREATED

2 days ago

UPDATED

2 days ago

ADVISORY ID

CGA-8q9g-vv4m-6vjf

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-25rm-wjp3-qgcq

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-2fgp-whxh-wh29

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-39cj-rmjw-xwhx

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

1 day ago

UPDATED

1 day ago

ADVISORY ID

MINI-3cx3-2w2h-2mx6

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-3v37-c4q7-p5xf

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-45r6-v9cr-rf3g

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-4mr2-4w7j-mq7m

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

24 hours ago

UPDATED

24 hours ago

ADVISORY ID

MINI-4ppx-7crr-pqx2

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-4vcx-3g9h-qwph

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-5799-gr8j-j894

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-64f9-2cg6-jcg7

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-67jc-m629-pm44

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-6xrm-97xq-f9pm

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-7242-9qpp-5cp7

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-79h2-q3m2-p8px

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-7j4x-cm87-qv2g

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

1 day ago

UPDATED

1 day ago

ADVISORY ID

MINI-7qm9-7v7r-w6g8

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-7x4c-p574-5gch

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-887p-mmgq-qcwr

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

1 day ago

UPDATED

1 day ago

ADVISORY ID

MINI-89hp-3c7x-24p9

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

23 hours ago

UPDATED

23 hours ago

ADVISORY ID

MINI-953g-2hx7-gcg2

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-9h8p-7qwf-mvpg

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-9p2x-9vvr-w5c7

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-9xr2-228q-8x67

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-c4w9-4952-q8px

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-f329-q9w3-h7px

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-f8p6-48hv-93wh

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-f8v2-7wj2-537p

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-gjmm-3hfj-h4jj

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-grxf-2r65-xcp2

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

1 day ago

UPDATED

1 day ago

ADVISORY ID

MINI-hg6x-j2p3-7288

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-hm4v-6c35-vrhh

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-hpc7-f9fr-jj7x

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

1 day ago

UPDATED

1 day ago

ADVISORY ID

MINI-j7gw-2hmh-qwr4

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-mq3x-w2g4-76xr

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-mwmm-r7r3-5g23

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

23 hours ago

UPDATED

23 hours ago

ADVISORY ID

MINI-p4hw-h8hp-cg7g

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-p68j-xgfx-92rw

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

23 hours ago

UPDATED

23 hours ago

ADVISORY ID

MINI-p8p4-499v-hx85

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-pjwm-434m-wfhg

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-pmxq-c4mw-884c

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

1 day ago

UPDATED

1 day ago

ADVISORY ID

MINI-pv5x-f5mc-4hwc

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

1 day ago

UPDATED

1 day ago

ADVISORY ID

MINI-q4r3-cjfr-wgp7

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

1 day ago

UPDATED

1 day ago

ADVISORY ID

MINI-q582-crrc-fxc9

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-q6wm-2crv-v5fj

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-qf9j-chxm-6297

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-qv35-98wj-6r4g

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-rf4v-cjcc-pr9r

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-rm4c-5hcm-vg5p

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

1 day ago

UPDATED

1 day ago

ADVISORY ID

MINI-v2xc-c356-wpm4

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

23 hours ago

UPDATED

23 hours ago

ADVISORY ID

MINI-vf3j-q8wp-j58g

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-vm2j-cvvq-667c

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-vp76-gcr9-hmf9

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-vw5x-cmj2-3c4g

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-w245-f5qp-j5ww

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-w285-r286-9rxf

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

1 day ago

UPDATED

1 day ago

ADVISORY ID

MINI-wvwx-8cgq-q4cp

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

5 days ago

UPDATED

5 days ago

ADVISORY ID

MINI-x5r9-mjx6-gwcm

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

1 day ago

UPDATED

1 day ago

ADVISORY ID

MINI-x98h-8fx7-r8jv

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

23 hours ago

UPDATED

23 hours ago

ADVISORY ID

MINI-xmxw-g37c-6rmc

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY

minimos

CREATED

1 day ago

UPDATED

1 day ago

ADVISORY ID

MINI-xwx3-38jr-5fq9

EXPLOITABILITY SCORE

EXPLOITS FOUND

COMMON WEAKNESS ENUMERATION (CWE)-

RATING UNAVAILABLE FROM ADVISORY