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CVE-2018-1000814

21
FAUCET Score

CVE-2018-1000814 affects aio-libs aiohttp-session versions 2.6.0 and earlier, allowing for non-expiring or infinite lifespan sessions due to a flaw in EncryptedCookieStorage and NaClCookieStorage. An attacker can recreate an expired session cookie with its original value, effectively bypassing session expiry. This vulnerability has a CVSS score of 6.5 (Medium), indicating it can be exploited remotely with low complexity by an authenticated user, leading to high integrity impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.0CPE matchmatch criteria
cpe:2.3:a:aio-libs:aiohttp_session:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 71st percentile among its peer group of 21,977 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: aiohttp-sessionFixed in: 2.7.0

Vendor Advisories (1)

pipGHSA-mr4x-c4v9-x729high

aiohttp-session creates non-expiring sessions

Dec 20, 2018

References

github.com / aio-libs/aiohttp-session/issues/325
ExploitThird Party Advisory
github.com / aio-libs/aiohttp-session/pull/331
PatchThird Party Advisory