CVE-2021-32685
CVE-2021-32685 is a critical-severity vulnerability in Togatech Tenvoy with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-347.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 1% (47th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-347
- Affected product: Togatech Tenvoy
- Published:
- Last modified:
Description
tEnvoy contains the PGP, NaCl, and PBKDF2 in node.js and the browser (hashing, random, encryption, decryption, signatures, conversions), used by TogaTech.org. In versions prior to 7.0.3, the `verifyWithMessage` method of `tEnvoyNaClSigningKey` always returns `true` for any signature that has a SHA-512 hash matching the SHA-512 hash of the message even if the signature was invalid. This issue is patched in version 7.0.3. As a workaround: In `tenvoy.js` under the `verifyWithMessage` method definition within the `tEnvoyNaClSigningKey` class, ensure that the return statement call to `this.verify` ends in `.verified`.
Frequently asked questions
- What is CVE-2021-32685?
- tEnvoy contains the PGP, NaCl, and PBKDF2 in node.js and the browser (hashing, random, encryption, decryption, signatures, conversions), used by TogaTech.org. In versions prior to 7.0.3, the `verifyWithMessage` method of `tEnvoyNaClSigningKey` always returns `true` for any signature that has a SHA-512 hash matching the SHA-512 hash of the message even if the signature was invalid. This issue is patched in version 7.0.3. As a workaround: In `tenvoy.js` under the `verifyWithMessage` method definition within the `tEnvoyNaClSigningKey` class, ensure that the return statement call to `this.verify` ends in `.verified`.
- How severe is CVE-2021-32685?
- CVE-2021-32685 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-32685 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-32685?
- CVE-2021-32685 affects Togatech Tenvoy. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-32685?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2021-32685 published?
- CVE-2021-32685 was published on 2021-06-16 and last updated on 2026-06-17.
References
- https://github.com/TogaTech/tEnvoy/commit/a121b34a45e289d775c62e58841522891dee686b
- https://github.com/TogaTech/tEnvoy/releases/tag/v7.0.3
- https://github.com/TogaTech/tEnvoy/security/advisories/GHSA-7r96-8g3x-g36m
Affected products (1)
- cpe:2.3:a:togatech:tenvoy:*:*:*:*:*:node.js:*:*
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