CVE-2026-123664

LOW
INFO Priority: 0.00 BB Relevance: 54/100
Published: 2026-11-06 Modified: 2026-11-10 First seen: 2026-11-06 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: X
AT: None
VC: None
VI: Low
VA: Low

Description

A security flaw has been discovered in nasa-gcn gcn.nasa.gov up to b299b562af665878964b981a459f0a9c04b11adf. This issue affects some unknown processing of the file /user/email of the component Email Notification Handler. Performing a manipulation of the argument Recipient results in improper authorization. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The pull request to fix this issue awaits acceptance.

Affected Software (3)

VendorProductVersion
nasa-gcn gcn.nasa.gov b299b562af665878964b981a459f0a9c04b11adf
nasa-gcn gcn.nasa.gov b299b562af665878964b981a459f0a9c04b11adf
nasa-gcn gcn.nasa.gov b299b562af665878964b981a459f0a9c04b11adf

References & Advisories (8)

https://vuldb.com/vuln/431788
vdb-entry technical-description
https://vuldb.com/submit/1033135
third-party-advisory
https://vuldb.com/vuln/431788/cti
signature permissions-required
https://github.com/nasa-gcn/gcn.nasa.gov/
government-resource product
https://github.com/nasa-gcn/gcn.nasa.gov/issues/3805
exploit government-resource issue-tracking
https://https:/github.com/nasa-gcn/gcn.nasa.gov/pull/3863
broken-link government-resource issue-tracking

Bug Bounty Relevance

54 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

2.1 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.24%
Raw Score 0.002350
Percentile 14.6%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00235
2026-11-12
0.00235
2026-11-10
0.00235
2026-11-09
0.00235
2026-11-08
0.00235
2026-11-07
0.00235

Intelligence Sources

mitre ref →
nvd ref →