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GHSA-pgx9-497m-6c4v
sm-cryptoSummary
A private key recovery vulnerability exists in the SM2 decryption logic of sm-crypto. By interacting with the SM2 decryption interface multiple times, an attacker can fully recover the private key within approximately several hundred interactions.
Credit
This vulnerability was discovered by:
- XlabAI Team of Tencent Xuanwu Lab
- Atuin Automated Vulnerability Discovery Engine
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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. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data.
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.
- CVE-2026-23966Alias
- EUVD-2026-3676Alias
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