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LAUNDRY BEAR
OrganisationRU

LAUNDRY BEAR

LAUNDRY BEAR is a Russian state-supported cyber actor, also tracked as Void Blizzard, CL-STA-1114, TA488 and UNK_PitStop.

LAUNDRY BEAR is the Russian state-linked group that CISA, the NSA and FBI led 15 nations in naming on 23 July 2026 over a zero-click Zimbra webmail flaw exploited for up to 90 days.

Last refreshed: 3 August 2026 · Appears in 1 active topic

Key Question

LAUNDRY BEAR needs no click to steal your mail, so what happens once Zimbra finally patches?

Timeline for LAUNDRY BEAR

#12 26 Jul
#11 23 Jul

Ran a zero-click exploit chain against Zimbra webmail

Cybersecurity: Threats and Defences: Zimbra preview leaks mail to Russia
View full timeline →

Background

LAUNDRY BEAR is a Russian state-supported cyber actor also tracked under the aliases Void Blizzard, CL-STA-1114, TA488 and UNK_PitStop, reflecting the industry's common practice of different vendors assigning separate names to overlapping activity before attribution converges.

On 23 July 2026, CISA, the NSA and FBI led a Coalition of 15 nations in publicly naming the group over its exploitation of a zero-click flaw in Zimbra webmail, which let it read victims' email for up to 90 days without requiring any click from the target. A patch for the underlying flaw had existed for eight months before the public warning was issued.

The group is tracked separately from FSB Centre 16, which the UK's NCSC and 18 partner agencies attributed a distinct router-hijacking campaign to on 9 July 2026; the two are not established as the same actor in current reporting.

Common Questions
Who is LAUNDRY BEAR?
LAUNDRY BEAR is a Russian state-supported cyber actor, also tracked as Void Blizzard, CL-STA-1114 and TA488, named by a 15-nation Coalition on 23 July 2026 for a zero-click exploit of Zimbra webmail.Source: CISA
What is Void Blizzard?
Void Blizzard is an earlier tracking name for LAUNDRY BEAR, used by Dutch intelligence when it first attributed the group's password-spraying and pass-the-cookie tradecraft in May 2025.Source: CISA
How does the LAUNDRY BEAR Zimbra attack work?
Merely previewing a single email in Zimbra Collaboration Suite triggers the exploit, handing LAUNDRY BEAR the target's last 90 days of mail and the organisation's Global Address List with no further user action.Source: CISA
Which agencies signed the LAUNDRY BEAR advisory?
Fifteen agencies co-sealed advisory AA26-204A on 23 July 2026, including CISA, the NSA and FBI in the US, Britain's NCSC, France's ANSSI and the Dutch AIVD.Source: CISA
Source Material