PT-2026-36881 · Unknown · Openc3 Cosmos

Suffs811 · Published 2026-04-23 · Updated 2026-06-03 · CVE-2026-42087

Positive Technologies (AI Summary)

CVSS v3.1

9.6

Critical

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions OpenC3 COSMOS versions 6.7.0 through 7.0.0-rc3

Description The Time-Series Database (TSDB) component contains a SQL injection flaw. The tsdb lookup() function within the cvt model.rb file incorporates user-supplied input into a SQL query without proper sanitization. This allows a user to escape the original SQL statement and execute arbitrary SQL commands, which could lead to the deletion of data.

Recommendations Update to version 7.0.0-rc3.

Exploit

Fix

SQL injection

Weakness Enumeration

CWE-89

Related Identifiers

CVE-2026-42087

GHSA-V529-VHWC-WFC5

Affected Products

Openc3 Cosmos

References · 18

• 🔥 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/openc3/CVE-2026-42087.yml · Exploit
• 🔥 https://github.com/OpenC3/cosmos/security/advisories/GHSA-v529-vhwc-wfc5 · Exploit
• https://github.com/OpenC3/cosmos/commit/9ba60c09c8836a37a2e4ea67ab35fe403e041415 · Patch
• https://osv.dev/vulnerability/GHSA-v529-vhwc-wfc5 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-42087 · Security Note
• https://github.com/OpenC3/cosmos · Note
• https://github.com/OpenC3/cosmos/releases/tag/v7.0.0-rc3 · Note
• https://twitter.com/lyrie_ai/status/2054373761957155262 · Twitter Post
• https://twitter.com/lyrie_ai/status/2062101061402271812 · Twitter Post
• https://twitter.com/lyrie_ai/status/2062101060496335087 · Twitter Post
• https://twitter.com/lyrie_ai/status/2054373763764875764 · Twitter Post
• https://twitter.com/DFIR_Lab/status/2058700913741562034 · Twitter Post
• https://t.me/cveNotify/162547 · Telegram Post
• https://t.me/cveNotify/162785 · Telegram Post
• https://t.me/cveNotify/162171 · Telegram Post