CVE-2026-16459: CWE-208 Observable timing discrepancy in Oberon microsystems AG Oberon PSA Crypto
CVE-2026-16459 is a padding oracle vulnerability in Oberon microsystems AG's Oberon PSA Crypto library versions starting from 1.0.0 up to but not including 2.1.1. The flaw allows attackers to recover plaintext data by measuring timing differences during RSA PKCS#1 v1.5 decryption operations. This vulnerability has a medium severity rating with a CVSS score of 5.9. No official patch or remediation guidance has been provided yet by the vendor. The vulnerability is not known to be exploited in the wild.
AI Analysis
Technical Summary
The Oberon PSA Crypto library contains a timing side-channel vulnerability classified as CWE-208 (Observable Timing Discrepancy) and CWE-327 (Use of a Broken or Risky Cryptographic Algorithm). Specifically, the RSA PKCS#1 v1.5 decryption operation leaks timing information that can be exploited via a padding oracle attack to recover plaintexts. This affects all versions from 1.0.0 up to but not including 2.1.1. The vulnerability was published on August 13, 2026, with no vendor advisory or patch available at the time of this report.
Potential Impact
An attacker with local access can exploit timing discrepancies during RSA PKCS#1 v1.5 decryption to recover sensitive plaintext data. This compromises the confidentiality of encrypted information processed by the affected Oberon PSA Crypto library versions. There is no indication of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider mitigating the risk by avoiding use of the affected RSA PKCS#1 v1.5 decryption operations or employing additional cryptographic protections if feasible.
CVE-2026-16459: CWE-208 Observable timing discrepancy in Oberon microsystems AG Oberon PSA Crypto
Description
CVE-2026-16459 is a padding oracle vulnerability in Oberon microsystems AG's Oberon PSA Crypto library versions starting from 1.0.0 up to but not including 2.1.1. The flaw allows attackers to recover plaintext data by measuring timing differences during RSA PKCS#1 v1.5 decryption operations. This vulnerability has a medium severity rating with a CVSS score of 5.9. No official patch or remediation guidance has been provided yet by the vendor. The vulnerability is not known to be exploited in the wild.
CVSS v4.0
Score 5.9medium
Affected software
pkg:github/oberon-microsystems/oberon-psa-cryptoRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Oberon PSA Crypto library contains a timing side-channel vulnerability classified as CWE-208 (Observable Timing Discrepancy) and CWE-327 (Use of a Broken or Risky Cryptographic Algorithm). Specifically, the RSA PKCS#1 v1.5 decryption operation leaks timing information that can be exploited via a padding oracle attack to recover plaintexts. This affects all versions from 1.0.0 up to but not including 2.1.1. The vulnerability was published on August 13, 2026, with no vendor advisory or patch available at the time of this report.
Potential Impact
An attacker with local access can exploit timing discrepancies during RSA PKCS#1 v1.5 decryption to recover sensitive plaintext data. This compromises the confidentiality of encrypted information processed by the affected Oberon PSA Crypto library versions. There is no indication of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider mitigating the risk by avoiding use of the affected RSA PKCS#1 v1.5 decryption operations or employing additional cryptographic protections if feasible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- NCSC.ch
- Date Reserved
- 2026-07-21T11:21:06.418Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7d86d5bf8831d539f17fba
Added to database: 08/13/2026, 08:56:53 UTC
Last enriched: 08/13/2026, 09:15:42 UTC
Last updated: 08/13/2026, 09:15:42 UTC
Views: 4
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