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🛡️ CVE-2026-4648

⚪ Unknown ✅ No Known Exploit CWE-326 NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Use of an insecure cryptographic algorithm in the cashless payment system using NFC wristbands from CasfID Servicios Tecnológicos S.L.U. (version used at Resurrection Fest 2025), which employs cards based on MIFARE Classic technology (FM11RF08S). The cryptographic weakness of the authentication algorithm allows an attacker to retrieve access keys using techniques known as Backdoored Nested Attack, read the wristband’s entire contents, and clone its credentials onto a compatible rewritable card. Exploitation of this vulnerability could enable the impersonation of other attendees, the fraudulent use of the balance associated with their wristbands, and financial losses for both the affected users and the event organizers.

Weakness class

CVE-2026-4648 is classified as CWE-326: Inadequate Encryption Strength. Encryption is applied, but with a key length or scheme too weak to resist a realistic attacker.

Affected software

CVE-2026-4648 is recorded against 1 package.

  • unknown

Timeline and source

Published on 28 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

www.incibe.es

Other advisories for this package

unknown has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-326: Inadequate Encryption Strength) in other software:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE CWE-326
Public Exploit ✅ No
Source NVD
Published 2026-07-28
Updated 2026-08-20
Modified 2026-07-28
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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