CVE-2018-1000519
CVE-2018-1000519 is a medium-severity vulnerability in Aio-libs Aiohttp Session with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-384.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (64th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-384
- Affected product: Aio-libs Aiohttp Session
- Published:
- Last modified:
Description
aio-libs aiohttp-session contains a Session Fixation vulnerability in load_session function for RedisStorage (see: https://github.com/aio-libs/aiohttp-session/blob/master/aiohttp_session/redis_storage.py#L42) that can result in Session Hijacking. This attack appear to be exploitable via Any method that allows setting session cookies (?session=<>, or meta tags or script tags with Set-Cookie).
Frequently asked questions
- What is CVE-2018-1000519?
- aio-libs aiohttp-session contains a Session Fixation vulnerability in load_session function for RedisStorage (see: https://github.com/aio-libs/aiohttp-session/blob/master/aiohttp_session/redis_storage.py#L42) that can result in Session Hijacking. This attack appear to be exploitable via Any method that allows setting session cookies (?session=<>, or meta tags or script tags with Set-Cookie).
- How severe is CVE-2018-1000519?
- CVE-2018-1000519 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2018-1000519 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-1000519?
- CVE-2018-1000519 affects Aio-libs Aiohttp Session. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-1000519?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2018-1000519 published?
- CVE-2018-1000519 was published on 2018-06-26 and last updated on 2026-06-17.
References
- https://github.com/aio-libs/aiohttp-session/blob/master/aiohttp_session/redis_storage.py#L60
- https://github.com/aio-libs/aiohttp-session/issues/272
Affected products (1)
- cpe:2.3:a:aio-libs:aiohttp_session:*:*:*:*:*:*:*:*
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