Pega Infinity: Unchecked Input for Loop Condition
CVE-2026-13761 is a high-severity unchecked input for loop condition vulnerability in Pega Infinity from Pegasystems, with a CVSS 4.0 base score of 8.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version Infinity 25.1.3 as the first without the flaw, so updating Pega Infinity to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.43% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Pega Infinity to Infinity 25.1.3 or a later version.
- Read the advisory on support.pega.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Pegasystems | Pega Infinity | 7.1.0 up to, but not including, Infinity 25.1.3 | Infinity 25.1.3 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Attack requirements
- NoneThe attack does not depend on a particular deployment or configuration.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Confidentiality (vulnerable system)
- NoneNo loss of confidentiality on the vulnerable system.
- Integrity (vulnerable system)
- HighSerious loss of integrity on the vulnerable system.
- Availability (vulnerable system)
- HighSerious loss of availability on the vulnerable system.
- Confidentiality (other systems)
- NoneNo loss of confidentiality on systems beyond the vulnerable one.
- Integrity (other systems)
- NoneNo loss of integrity on systems beyond the vulnerable one.
- Availability (other systems)
- LowLimited loss of availability on systems beyond the vulnerable one.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:L/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. Scored by CNA (pega.com).
Official description
Pega Platform versions 7.1.0 through 25.1.2 are affected by an improper validation of inputs that are used for loop conditions, potentially leading to a denial of service or other consequences because of excessive looping.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Unchecked Input for Loop Condition
The product does not properly check inputs that are used for loop conditions, potentially leading to a denial of service or other consequences because of excessive looping.
How developers prevent this class of flaw
- Do not use user-controlled data for loop conditions.
More Unchecked Input for Loop Condition vulnerabilities (CWE-606)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Pega Infinity
- 8.6 High severity
- 7.1 High severity
- 9.8 Critical severity
Recent Unchecked Input for Loop Condition vulnerabilities
- 8.6 High severity
- 7.5 High severity
- 7.5 High severity
- 7.7 High severity
- 7.5 High severity
- 7.2 High severity
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