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High severity7.5NVD Advisory· Published Jun 21, 2022· Updated Jun 17, 2026

CVE-2021-40511

CVE-2021-40511

Description

OBDA systems’ Mastro 1.0 is vulnerable to XML Entity Expansion (aka “billion laughs”) attack allowing denial of service.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3

OBDA systems/Mastro3 versions
cpe:2.3:a:obdasystems:mastro:1.0:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:obdasystems:mastro:1.0:*:*:*:*:*:*:*
- (no CPE)
- (no CPE)range: = 1.0

Patches

Vulnerability mechanics

References

2

www.cyberiskvision.com/advisory/nvdThird Party Advisory
www.obdasystems.com/mastronvdProductVendor Advisory

News mentions

0

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