Security readout for executives and security teams
Plain-English summary
This flaw could let an expired aiohttp-session cookie continue working, weakening logout and session timeout controls. The public record does not provide a CVSS score, CWE, or confirmed active exploitation. Business risk depends on whether exposed applications use the affected cookie storage modes for authenticated sessions.
Executive priority
Treat as targeted application risk rather than internet-wide emergency. Prioritize systems where aiohttp-session protects administrative, customer, or sensitive workflows, because failed session expiry can undermine access termination expectations.
Technical view
aiohttp-session 2.6.0 and earlier is reported vulnerable in EncryptedCookieStorage and NaClCookieStorage. The issue is non-expiring sessions or infinite lifespan when a cookie is recreated after expiry with the same value. The source bundle names GitHub issue #325 and PR #331 but does not include detailed patch or exploit evidence.
Likely exposure
Exposure is likely limited to Python aiohttp applications using aiohttp-session 2.6.0 or earlier with EncryptedCookieStorage or NaClCookieStorage for session cookies.
Exploitation context
The CVE says exploitation appears possible through recreating a post-expiry cookie with the same value. No KEV listing or cited source confirms active exploitation, public exploit availability, or broad scanning activity.
Researcher notes
Evidence is sparse: severity, CVSS, CWE, affected CPEs, and fixed version are not supplied in the bundle. Analysis should stay tied to aiohttp-session cookie-backed storage modes and avoid assuming impact on unrelated aiohttp components.
Mitigation direction
- Inventory aiohttp-session versions across Python aiohttp applications.
- Check aiohttp-session issue #325 and PR #331 for fixed-release guidance.
- Upgrade beyond the affected 2.6.0-and-earlier range when the fixed version is confirmed.
- Review whether authentication relies solely on client-side cookie expiry.
- After remediation, follow maintainer guidance on session invalidation if provided.
Validation and detection
- Confirm whether aiohttp-session is present in dependency manifests or runtime environments.
- Identify use of EncryptedCookieStorage or NaClCookieStorage in application code.
- Verify deployed versions are not 2.6.0 or earlier.
- Confirm session timeout behavior after any vendor-guided update.
- Document any applications where affected storage modes remain in use.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2018-1000814 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/aio-libs/aiohttp-session/pull/331CVE reference · x_refsource_MISC
- https://github.com/aio-libs/aiohttp-session/issues/325CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.