CVE-2026-1520: rethinkdb Secondary Index cross site scripting

Severity: low (CVSS 2.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-28 · updated 2026-06-17
Weakness: CWE-79

Description

A vulnerability was identified in rethinkdb up to 2.4.3. Affected by this issue is some unknown functionality of the component Secondary Index Handler. Such manipulation leads to cross site scripting. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

rethinkdb: 2.4.0, 2.4.1, 2.4.2, 2.4.3

References

https://github.com/59lab/dbdb/blob/main/There%20is%20a%20cross-site%20scripting(XSS)%20vulnerability%20in%20the%20rethinkdb%20database.md
https://github.com/59lab/dbdb/blob/main/There%20is%20a%20cross-site%20scripting(XSS)%20vulnerability%20in%20the%20rethinkdb%20database.md#poc
https://vuldb.com/?ctiid.343191
https://vuldb.com/?id.343191
https://vuldb.com/?submit.738312

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