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GHSA-27f5-xjrr-q9ff
No affected components available
Overview
The OpenSearch Project has sustained a security incident involving an external actor gaining force-push permissions within the project's CI infrastructure to embed malicious packages into four release versions of @opensearch-project/opensearch. Users are instructed to immediately take actions recommended in the Remediation section of this advisory.
Affected Versions
Package: @opensearch-project/opensearch
| Version | Published (UTC) | Published (America/New_York) | |---------|----------------|------------------------------| | 3.5.3 | 2026-05-12T00:47:39Z | May 11, 2026, 8:47:39 PM EDT | | 3.6.2 | 2026-05-12T00:29:34Z | May 11, 2026, 8:29:34 PM EDT | | 3.7.0 | 2026-05-12T00:42:29Z | May 11, 2026, 8:42:29 PM EDT | | 3.8.0 | 2026-05-12T00:43:54Z | May 11, 2026, 8:43:54 PM EDT |
Remediation
Any computer that has these package versions installed or updated between 00:00 UTC 12 May 2026 (8:00 PM EDT 11 May 2026) and 10:00 UTC 12 May 2026 (6:00 AM EDT 12 May 2026) should be considered fully compromised. Steps should immediately be taken to prevent further compromise.
- All secrets and keys stored on that computer should be rotated immediately from an alternate system.
- The affected packages should be removed immediately, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
References
GHSA-g7cv-rxg3-hmpx https://github.com/TanStack/router/issues/7383
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. The attacker needs the user to perform some action, like clicking a link. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.
Exploitation activity has been observed. Apply available patches or mitigations urgently.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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