CVE-2024-53441
Bit flip attack vulnerability in cookie-encrypter
An issue in the index.js decryptCookie function of cookie-encrypter v1.0.1 allows attackers to execute a bit flipping attack.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
An issue in the index.js decryptCookie function of cookie-encrypter v1.0.1 allows attackers to execute a bit flipping attack.
- Record
CVE-2024-53441- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-327
- Updated
- 2026-11-02
EUVDEUVD-2024-3476
An issue in the index.js decryptCookie function of cookie-encrypter v1.0.1 allows attackers to execute a bit flipping attack.
- Record
EUVD-2024-3476- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h63v-hw6g-x8hp
Bit flip attack vulnerability in cookie-encrypter
due to a weakness in the encryption method used in cookie-encrypter an attack can use the world visible IV to edit encrypted cookies without decrypting the cookie itself. This is known as an AES CBC bit flipping attack.
- Record
GHSA-h63v-hw6g-x8hp- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N - Weakness
- CWE-325, CWE-327
- Updated
- 2026-11-02
NVD
An issue in the index.js decryptCookie function of cookie-encrypter v1.0.1 allows attackers to execute a bit flipping attack.
- Record
CVE-2024-53441- CVSS 3.1
- 9.1 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Weakness
- CWE-327
- Updated
- 2026-11-02
OSVGHSA-h63v-hw6g-x8hp
Bit flip attack vulnerability in cookie-encrypter
due to a weakness in the encryption method used in cookie-encrypter an attack can use the world visible IV to edit encrypted cookies without decrypting the cookie itself. This is known as an AES CBC bit flipping attack.
- Record
GHSA-h63v-hw6g-x8hp- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N - Weakness
- CWE-325, CWE-327
- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
cookie-encrypternpm |
through 1.0.1 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-53441 is a critical vulnerability (CVSS 9.1) in cookie-encrypter, published December 9, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 21st percentile. No source names a fixed version.
References
gist.github.com/mathysEthical/f45f1503f87381090e38a33c50eec971
mathys.reboux.pro/CVE/2024/53441
nvd.nist.gov/vuln/detail/CVE-2024-53441
github.com/ebourmalo/cookie-encrypter/issues/9
crypto.stackexchange.com/questions/66085/bit-flipping-attack-on-cbc-mode