🛡️ CVE-2026-18830

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: Low — an ordinary user account is enough.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: High — total loss, or loss the attacker controls.
• Integrity impact: High — total loss, or loss the attacker controls.
• Availability impact: None.

Weakness class

CVE-2026-18830 is classified as CWE-1287: Improper Validation of Specified Type of Input. The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type.

Affected software

CVE-2026-18830 is recorded against 1 package.

• unknown

Timeline and source

Published on 4 August 2026 and last revised on 6 August 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

aws.amazon.com

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:

• CVE-2022-4995 (9.8 Critical, published 7 Aug 2026)
• CVE-2022-4994 (published 30 Jul 2026)
• CVE-2023-49900 (9.8 Critical, published 16 Jul 2026)
• CVE-2023-49899 (9.8 Critical, published 16 Jul 2026)
• CVE-2022-4990 (published 3 Jul 2026)
• CVE-2022-4989 (published 3 Jul 2026)
• CVE-2022-50973 (9.8 Critical, published 2 Jul 2026)
• CVE-2023-20540 (published 26 Jun 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-1287: Improper Validation of Specified Type of Input) in other software:

• CVE-2026-20498 (6.0 Medium, published 3 Aug 2026)
• CVE-2026-4773 (8.1 High, published 22 Jul 2026)
• CVE-2026-50524 (8.0 High, published 20 Jul 2026)
• CVE-2026-54235 (6.5 Medium, published 13 Jul 2026)
• CVE-2026-52763 (published 9 Jul 2026)
• CVE-2026-4646 (4.3 Medium, published 7 Jul 2026)
• CVE-2025-61672 (published 7 Jul 2026)
• CVE-2025-1057 (published 7 Jul 2026)

Details

Affected Packages

References