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01 Record

CVE-2026-71562

httpc does not bound server-supplied numeric header values before integer conversion

MediumPUBLISHEDCNA: EEF
CNA base score6.3 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
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02 Description

httpc does not bound server-supplied numeric header values before integer conversion

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 ImpactpartialSuccessful exploitation gives limited 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
0.57% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 47.2% of scored records. A rank, not a probability.
NVD base score
6.3 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/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
NVD analysis status
Deferred. NVD last modified this record on 2026-09-08.
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
2026-09-01 14:33Z1 MO AGO
Last updated
2026-09-08 01:09Z1 MO AGO
Reserved
2026-08-07
Assigning CNA
EEF
Record state
PUBLISHED
Severity
Medium (CVSS 6.3)
CNA CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weaknesses
  • CWE-1284Improper Validation of Specified Quantity in InputBase
Data version
5.2
Document digest
038a92eb55948ea26cc3d0933312cdb763ed78aa7b19e9967f34b585540a2c08

05 Affected products

VendorProductVersionsPlatforms
ErlangOTP17.0 to < 27.3.4.17, 28.0 to < 28.5.0.6, 29.0 to < 29.0.6, 5.10 to < 9.3.2.7, 9.4 to < 9.6.2.3, 9.7 to < 9.7.2, 84adefa331c4159d432d22840663c38f155cd4c1 to < *—

06 References