Is CVE-2026-104267 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-104267 being exploited in the wild.

How severe is CVE-2026-104267?

Informational severity, published 6 November 2026.

Which products and versions are affected?

Botan Project Botan 2.7.0 to 3.12.x.

Is there a fix for CVE-2026-104267?

Yes: fixed in 3.13.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-104267 attacked?

It is attacked over the network or with local access.

Am I affected by CVE-2026-104267?

Check whether you run Botan Project Botan at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-104267: Botan Scrypt integer overflow in memory calculation

CVE-2026-104267 · Severity: info · Published 2026-11-06

Botan is a C++ cryptography library used for password hashing and encryption. On 32-bit platforms, Botan's Scrypt implementation fails to properly validate integer overflow when computing memory requirements, allowing an attacker who controls Scrypt parameters to cause a buffer overflow that crashes the application and denies service. Applications that decrypt attacker-supplied encrypted private keys are particularly vulnerable.

Technologies: Botan Project Botan. Vendors: Botan Project.

Quick answers

Is CVE-2026-104267 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-104267 being exploited in the wild.
How severe is CVE-2026-104267?: Informational severity, published 6 November 2026.
Which products and versions are affected?: Botan Project Botan 2.7.0 to 3.12.x.
Is there a fix for CVE-2026-104267?: Yes: fixed in 3.13.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-104267 attacked?: It is attacked over the network or with local access.
Am I affected by CVE-2026-104267?: Check whether you run Botan Project Botan at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 3.13.0

Technical details

The vulnerability is an integer overflow in unchecked multiplication when calculating Scrypt memory allocation on 32-bit platforms; attacker-controlled Scrypt parameters wrap the allocation size, resulting in a heap buffer smaller than the algorithm requires, causing ~4 GB of output to be written past the buffer boundary. The issue affects systems with Scrypt enabled that accept arbitrary parameters from untrusted sources, including password key derivation with user-supplied encrypted keys. The fix in version 3.13.0 introduces memory bounds checking (2 GB for 32-bit, 8 GB elsewhere) and uses safe integer arithmetic (checked_mul/checked_add).

Affected products

Botan Project Botan 2.7.0 to 3.12.x

Timeline

2026-11-06: disclosed
2026-05-30: patched: Fix merged in version 3.13.0

References

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