CVE-2026-21279: adobe coldfusion Improper Input Validation
CVSS: 8.2v3.1HighAnalyzed
Published 11-08-2026Last modified 27-08-2026
Vulnerability summary
CVE-2026-21279 is a high (CVSS 8.2) Improper Input Validation vulnerability in adobe coldfusion. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 55.4% of scored vulnerabilities.
CVSS score
8.2/10
010
High · v3.1 (CVE.org)EPSS score
0.79%
0%100%
Low · +0.28 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 11-08-2026PublishedVulnerability first disclosed.
- 27-08-2026Last modifiedVulnerability information updated.
Description
is affected by an Improper Input Validation vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized read and limited write access. Exploitation of this issue does not require user interaction.
CVSS metrics
2 scores · 2 sources · 1 versionHigh 8.2Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:NSourcesAll 2 agree
- NVDNIST8.2HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS trend
Probability
0.79%
Chance of exploitation in the next 30 days
Percentile
55%
Versus all other CVEs
30-day change
+0.28 pp
From 0.51% on 19-09-2026
19-09-202619-10-2026
EPSS score0.79%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Adobe3 products
- coldfusion2023 | 2023:update1 | 2023:update10 | 2023:update11 | 2023:update12 | 2023:update13 | 2023:update14 | 2023:update15 | 2023:update16 | 2023:update17 | 2023:update18 | 2023:update19 | 2023:update2 | 2023:update20 | 2023:update21 | 2023:update22 | 2023:update3 | 2023:update4 | 2023:update5 | 2023:update6 | 2023:update7 | 2023:update8 | 2023:update9 | 2025 | 2025:update1 | 2025:update10 | 2025:update11 | 2025:update2 | 2025:update3 | 2025:update4 | 2025:update5 | 2025:update6 | 2025:update7 | 2025:update8 | 2025:update9
- coldfusion 2023≤ 2023.0.22
- coldfusion 2025≤ 2025.0.11
1 vendor · 3 products
References
1 links- helpx.adobe.com/security/products/coldfusion/apsb26-90.htmlVendor Advisory