CVE-2018-1000814

Name: CVE-2018-1000814
Creator: NVD / NIST
Published: 2018-12-20T15:29:00.487+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.97%

Last modified Jun 17, 2026

CVE-2018-1000814 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. aio-libs aiohttp-session version 2.6.0 and earlier contains a Other/Unknown vulnerability in EncryptedCookieStorage and NaClCookieStorage that can result in Non-expiring sessions / Infinite lifespan. This attack appear to be exploitable via Recreation of a cookie post-expiry with the same value.. EPSS estimates a 0.97% chance of exploitation in the next 30 days.

Description

aio-libs aiohttp-session version 2.6.0 and earlier contains a Other/Unknown vulnerability in EncryptedCookieStorage and NaClCookieStorage that can result in Non-expiring sessions / Infinite lifespan. This attack appear to be exploitable via Recreation of a cookie post-expiry with the same value.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

0.97%

57.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-613

Affected Software

Vendor	Product	Versions
Aio-Libs	Aiohttp Session	<= 2.6.0

References

https://github.com/aio-libs/aiohttp-session/issues/325Exploit, Third Party Advisory
https://github.com/aio-libs/aiohttp-session/pull/331Patch, Third Party Advisory
https://github.com/aio-libs/aiohttp-session/issues/325Exploit, Third Party Advisory
https://github.com/aio-libs/aiohttp-session/pull/331Patch, Third Party Advisory

Timeline

Published: Dec 20, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1000814?

How severe is CVE-2018-1000814?

CVE-2018-1000814 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.97% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1000814?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-1000814?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST