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01 Record

CVE-2026-28681

IRRd: web UI host header injection allows password reset poisoning via attacker-controlled email links

HighPUBLISHEDCNA: GitHub_M
CNA base score8.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
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02 Description

IRRd: web UI host header injection allows password reset poisoning via attacker-controlled email links

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.44% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 38.3% of scored records. A rank, not a probability.
NVD base score
8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-03-06 04:35Z7 MO AGO
Last updated
2026-03-06 16:07Z7 MO AGO
Reserved
2026-03-02
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 8.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Weaknesses
  • CWE-601URL Redirection to Untrusted Site ('Open Redirect')Base
  • CWE-640Weak Password Recovery Mechanism for Forgotten PasswordBase
Data version
5.2
Document digest
b51adf8d128a8cb2c4808bb5cf4ebcd70a16adedc515b21890878bdc89137658

05 Affected products

VendorProductVersionsPlatforms
irrdnetirrd>= 4.4.0, < 4.4.5, >= 4.5.0, < 4.5.1—

06 References