Medium 6.1Published Sep 14, 2026

CVE-2026-55847Allure: Stored XSS via unescaped ANSI helper in Allure report status message/trace rendering

Updated under an hour ago (2026-10-19 06:10 UTC)

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It affects allure-framework allure2 and 1 other product. Add what you run to find out whether that includes you.

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Every CVE for allure-framework allure2

Exploited in the last 30 days

Allure 2 is the version 2.x branch of Allure Report, a multi-language test reporting tool. Prior to 2.39.0, the ansi.js helper at allure-generator/src/main/javascript/helpers/ansi.js passes attacker-influenced statusMessage and statusTrace values through AnsiToHtml without HTML escaping and wraps the result in Handlebars SafeString, disabling template auto-escaping in allure-generator/src/main/javascript/blocks/status-details/status-details.hbs. JunitXmlPlugin.java can populate these fields directly from crafted JUnit XML failure messages and traces, and equivalent input flows exist in the TRX, xUnit XML, xctest, and Allure1 and Allure2 plugins. When a user views the affected status details, unescaped markup executes arbitrary JavaScript in the report origin, which can expose report data and compromise sessions associated with that origin. This is an incomplete-fix case because PR 3271 escaped link helpers but did not address the ANSI helper. This issue is fixed in version 2.39.0.

CVSS: 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Sep 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

allure-framework allure2 allure_framework:allure2 (from the name)	before 2.39.0	CNA record
io.qameta.allure allure-generator io.qameta.allure:allure_generator (from the name)	before 2.39.0	CNA record

References

https://github.com/allure-framework/allure2/security/advisories/GHSA-gx93-m64w-5m6hx-refsource-confirm
https://github.com/allure-framework/allure2/pull/3296x-refsource-misc
https://github.com/allure-framework/allure2/commit/1c5693933f519e64379f1a14eb3c7beeba7bc7cdx-refsource-misc
https://github.com/allure-framework/allure2/releases/tag/2.39.0x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.