9.8

CVE-2018-18926: gitea Session Fixation

CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2018-18926GHSA-hf6f-jq25-8gq9GO-2022-0844
Published 04-11-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-18926 is a critical (CVSS 9.8) Session Fixation vulnerability in gitea. EPSS estimates a 3.04% chance of exploitation in the next 30 days, higher than 87.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (NVD)
EPSS score
3.04%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-11-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

Gitea before 1.5.4 allows remote code execution because it does not properly validate session IDs. This is related to session ID handling in the go-macaron/session code for Macaron.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

3.04%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 3.04% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.04%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Code.gitea.io1 product
  • gitea< 1.5.2
Gitea1 product
Ubuntu1 product
  • golang-code.gitea-gitAll versions (No fix recorded)

3 vendors · 3 products

References

7 links