6.3

CVE-2026-107269: Gophish through 0.12.1 Username Enumeration via POST /login Timing Discrepancy

Deferred
Published 07-10-2026Last modified 10-10-2026

Vulnerability summary

CVE-2026-107269 is a medium (CVSS 6.3) Observable Timing Discrepancy vulnerability in gophish. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.5% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.3/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.24%
0%100%
Low · Change unavailable
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Timeline

  1. 07-10-2026
    PublishedVulnerability first disclosed.
  2. 10-10-2026
    Last modifiedVulnerability information updated.

Description

Gophish through 0.12.1 contains a timing discrepancy vulnerability in AdminServer.Login that allows unauthenticated attackers to enumerate valid usernames by measuring login response times. Attackers can submit candidate usernames to POST /login and detect bcrypt comparison delays for existing accounts, narrowing targets for password guessing or credential stuffing.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

08-10-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (blog.ostorlab.co)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Gophish1 product

1 vendor · 1 product

References

4 links