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CVE-2026-6807

NSA GRASSMARLIN Improper Restriction of XML External Entity Reference

Medium5.5EPSS 0.20%
Published
Updated
Reserved
Assigned by
icscert

Description

A vulnerability in GRASSMARLIN v3.2.1 allows crafted session data to trigger improper handling of XML input, which may result in unintended exposure of sensitive information. The flaw stems from insufficient hardening of the XML parsing process.

Scores

CVSS scores of CVE-2026-6807, by who scored it
Scored byCVSSScoreVector
icscertCNA (assigner)3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVDNVD · Awaiting Analysis3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS (exploitation in 30 days)
0.20% · top 90% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Weakness

Affected products

What to do

Workaround: NSA has indicated that the GRASSMARLIN project has reached end-of-life status as of 2017 and is no longer supported. The project is archived, and no patches or further updates are planned or expected.

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .