6.5

CVE-2018-1000814: aio-libs aiohttp_session Insufficient Session Expiration

CVSS: 6.5v3.1MediumModified
AliasesGHSA-mr4x-c4v9-x729PYSEC-2018-35
Published 20-12-2018Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2018-1000814 is a medium (CVSS 6.5) Insufficient Session Expiration vulnerability in aio-libs aiohttp_session. EPSS estimates a 0.97% chance of exploitation in the next 30 days, higher than 61% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.97%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 20-12-2018
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 2 sources · 3 versions

EPSS trend

Probability

0.97%

Chance of exploitation in the next 30 days

Percentile

61%

Versus all other CVEs

30-day change

0.00 pp

From 0.97% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.97%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Aiohttp Session

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Aio-libs1 product
PyPI1 product
  • aiohttp-session< 2.7.0

2 vendors · 2 products

References

7 links